For most men erectile dysfunction is a blood-flow problem first. The small arteries that fill the penis are narrower than the ones feeding the heart, so they stiffen and clog earlier, which makes new erection trouble one of the earliest signs that the circulation needs attention, often years before a heart attack or stroke. It is also very treatable. The changes that repair blood vessels help most: regular exercise, a Mediterranean way of eating, losing excess weight and quitting cigarettes each firm up erections on their own, and pelvic-floor training adds a free lever on top.
In obese men, two years of diet and exercise restored normal function in about a third. The tablets work well for most men and belong after the basics. Testosterone helps only when blood levels are low, and shockwave therapy is an emerging clinic option.
This page covers:
- what works
- in what order
- what to do first
- the Chinese medicine reading by pattern
- the signs that make erectile dysfunction a reason to check the heart
Practice Ranking
Every practice we track for Erectile Dysfunction, ranked by how well the evidence supports it for this condition. Strength describes the evidence, not our endorsement.
7 practices · 2 to start with
| # | Practice | Evidence | Type | Cost | Effort | Results In | Add to plan |
|---|---|---|---|---|---|---|---|
| 1 | Zone 2 Aerobic exercise firms erections, most when the cause is vascular; roughly 40 minutes four times a week, and losing weight alongside it adds to the effect. | Strong | Self-Directed | Free to $$ | Moderate | Weeks to Months | |
| 2 | The Mediterranean Diet A Mediterranean pattern lowers the risk of erection problems, the benefit clearest in younger men. | Moderate | Self-Directed | $ to $$ | Moderate | Months to Longer | |
| 3 | Whole Foods A healthful plant-forward diet tracks with fewer erection problems, overlapping with the Mediterranean signal. | Moderate | Self-Directed | $ to $$ | Moderate to Hard | Weeks to Months | |
| 4 | Pelvic Floor Muscle Training Pelvic-floor exercises restored normal erections in about four in ten men, and helped many more. | Moderate | Self-Directed | Free to $$ | Easy to Moderate | Weeks to Months | |
| 5 | Quitting Smoking Vascular recovery improves erections after quitting. | Moderate | Pro | Free to $$ | Hard | Days to Longer | |
| 6 | Weight Loss Weight loss with exercise restored erections in about a third of men with obesity. | Moderate | Self-Directed | Free to $$$ | Moderate to Hard | Weeks to Months | |
| 7 | Panax Ginseng (Asian Ginseng) Korean red ginseng improved erection scores, but the trials are small and low quality. | Emerging | Supplement | $ to $$ | Easy | Weeks to Months | |
Default order puts the best-supported practices first, with self-directed care ahead of clinical options. Click any row to open the practice.
What It Is
Erectile dysfunction is the repeated inability to get or keep an erection firm enough for sex. An occasional off night is normal and means nothing. It becomes worth acting on when it lasts for weeks or months, and for most men over 40 the reason to act is that it is a blood-flow problem before it is anything else.
An erection is a vascular event. Arteries relax and fill the spongy tissue of the penis with blood, and the muscles at the base trap that blood to hold firmness. The arteries feeding the penis are narrower than the ones feeding the heart, so when fatty plaque and stiffening set in they show here first. New, unexplained erectile dysfunction is one of the earliest signs that the whole vascular system needs attention, often years before a heart attack or stroke. Treating it early protects the heart as much as the sex life.
Naming the type points to what helps:
- Vascular, the common one. Firmness that has faded gradually, often alongside a growing waistline, high blood pressure, high cholesterol, prediabetes or smoking. The arteries fill the penis less well. This is the type the lifestyle work below helps most.
- Psychological, often situational. Reliable morning erections and firmness alone, but difficulty with a partner, or a sudden onset tied to stress, anxiety or a new relationship. In Chinese medicine this often reads as Liver Qi constraint. Reducing performance pressure, treating anxiety or low mood, and sometimes a short course of a tablet to break the cycle are what help.
- Hormonal, so test it. Low desire as much as poor erections, with fatigue, low mood or loss of morning erections, which can point to low testosterone. A blood test, arranged through a clinician or a direct-to-consumer panel, settles it before any treatment.
- Drug or nerve related. Onset that followed a new medication (some blood-pressure drugs, antidepressants, finasteride) or that fits nerve or pelvic damage from diabetes, surgery or radiation. Reviewing medications with the prescriber and tightening glucose control are the levers here.
Erectile dysfunction that arrives suddenly, or alongside chest tightness, breathlessness on exertion or cramping leg pain when walking, is a reason to have the heart and circulation assessed as well as the erection treated. Those signs are in the When to See a Doctor section at the end.
What works, and where to start
The treatments below are ordered by effort and cost, cheapest and most durable first. The lifestyle work is the foundation. It repairs the blood vessels that produce an erection, and it protects the heart at the same time, which is why it comes before anything else. The tablets work well and come after the basics. Each finding below is graded at the strength of its own evidence; the prose places them in order and says who each one suits.
The Research & Studies
Everything here is based on the research we have collected and checked, sorted into groups and ordered with the strongest evidence first. Click any claim to open the studies behind it.
Sexual Function
Exercise firms erections, most where the cause is vascular
Men who took up regular exercise got firmer, more reliable erections than men who did not.
A pooled analysis of randomized controlled trials found that exercise, mostly aerobic training, improved erectile function scores on the International Index of Erectile Function against control conditions, with the largest gains in men whose erectile dysfunction was linked to vascular causes, physical inactivity, obesity, metabolic syndrome, high blood pressure or heart disease. Measured in: Men with erectile dysfunction enrolled in randomized trials of structured exercise, pooled across studies of predominantly aerobic and combined aerobic-resistance programs.. The trials were small and varied in the exercise prescribed and in how erectile function was measured, so the pooled estimate blends different doses. Exercise was often studied alongside, not instead of, standard care.
Who this may not transfer to:Erectile dysfunction is male-specific, so the finding is not transferable to women. Benefit was clearest in men with a vascular or metabolic cause; men whose erectile dysfunction is purely psychological or drug-induced were less represented.
The study · 1
Silva et al., physical activity and exercise for erectile dysfunction: systematic review and meta-analysis · Br J Sports Med 2017;51(19):1419-1424
Sildenafil made about 57% of sex attempts succeed, against 21% on placebo
Sildenafil (Viagra) let most men have successful sex, far more than a dummy pill.
A meta-analysis of randomized trials found that with sildenafil about 57 percent of intercourse attempts succeeded against about 21 percent on placebo, and roughly 83 percent of men reported improved erections against about 45 percent on placebo. Headache, flushing and indigestion were the common side effects. Measured in: Men with erectile dysfunction of mixed causes in placebo-controlled randomized trials of sildenafil.. Trials were mostly industry-sponsored and typically ran a few weeks to a few months. Nitrate heart medicines are the firm exception: taken with a PDE5 inhibitor they can drop blood pressure dangerously, which is why the drug is prescription-only.
Who this may not transfer to:Male-specific. Works regardless of the underlying cause in most men, but needs sexual stimulation to work and does not treat the vascular disease underneath.
The study · 1
Fink et al., sildenafil for male erectile dysfunction: a systematic review and meta-analysis · Arch Intern Med 2002;162(12):1349-60
Sildenafil, tadalafil and vardenafil work about equally well; tadalafil lasts up to 36 hours
Sildenafil, tadalafil and vardenafil all work about equally well for erections.
A comparative systematic review and meta-analysis found that the oral PDE5 inhibitors improved erectile function, intercourse success and satisfaction versus placebo, and that sildenafil, tadalafil and vardenafil were broadly similar in effectiveness. They differ mainly in timing: tadalafil lasts much longer, up to about 36 hours, which is why it also comes as a low daily dose, while sildenafil and vardenafil act over a shorter window. Headache, flushing, indigestion and nasal congestion were the usual adverse effects. Measured in: Men with erectile dysfunction in randomized trials of oral PDE5 inhibitors and, separately, hormonal treatments.. Head-to-head comparisons were fewer than placebo comparisons, so the similarity between drugs is inferred partly across trials. Choice usually comes down to how long a man wants the effect to last and how each drug suits him.
Who this may not transfer to:Male-specific. Testosterone treatment helped mainly men with confirmed low testosterone, not men with normal levels.
The study · 1
Tsertsvadze et al., oral phosphodiesterase-5 inhibitors and hormonal treatments for erectile dysfunction: a systematic review and meta-analysis · Ann Intern Med 2009;151(9):650-61
40 minutes of aerobic exercise four times a week improves erections
Doing about 40 minutes of brisk aerobic exercise four times a week improves erections over a few months.
A systematic review of intervention studies concluded that roughly 40 minutes of moderate-to-vigorous aerobic activity four times a week, about 160 minutes weekly, sustained over six months, reduces erectile problems, with the improvement in erectile function scores larger in men who started with more severe dysfunction. Measured in: Men with erectile dysfunction or with cardiovascular disease, obesity, metabolic syndrome or a history of physical inactivity, across the included aerobic-exercise intervention studies.. The included studies differed in design and in how they measured erection quality, and the review pools intervention studies rather than a single randomized comparison, so the dose is a practical synthesis rather than a precise prescription.
Who this may not transfer to:Male-specific outcome. The dose was drawn from studies of men with a vascular or metabolic contribution; it is the same aerobic prescription that helps the heart.
The study · 1
Gerbild et al., physical activity to improve erectile function: a systematic review of intervention studies with meta-analysis · Sex Med 2018;6(2):75-89
A Mediterranean diet lowers the risk of developing ED, most before age 60
Men who ate a Mediterranean-style diet were less likely to develop erection problems.
In a large prospective cohort, men whose eating pattern most closely matched a Mediterranean diet or scored highest on the Alternative Healthy Eating Index had a lower risk of developing erectile dysfunction over follow-up, and the association was strongest in men younger than 60. Measured in: Around 21,000 men in the Health Professionals Follow-up Study, a long-running US cohort of male health professionals, followed with repeated diet questionnaires and self-reported erectile function.. What could explain it instead: Healthy-user bias: men who eat a Mediterranean diet also tend to be leaner, more active, less likely to smoke and more engaged with healthcare, and diet cannot be fully separated from that whole pattern. The design shows association, not proof that the food itself caused the lower risk.. Diet and erectile function were self-reported, and the cohort is mostly white health professionals, so the absolute risks may not transfer to other groups.
Who this may not transfer to:Male-specific. The cohort is predominantly white US health professionals, a group that is health-aware and comparatively affluent.
The study · 1
Bauer et al., association of diet with erectile dysfunction among men in the Health Professionals Follow-up Study · JAMA Netw Open 2020;3(11):e2021701
A healthful plant-based diet tracks with fewer erection problems in men in their 60s
Men who ate more healthy plant foods had fewer erection problems, most clearly in their 60s. In men under 60, it was a diet high in unhealthful plant foods that tracked with more erection problems.
In the same cohort, men aged 60 to 69 with the highest healthful plant-based diet index, weighted toward whole grains, fruits, vegetables, nuts and legumes, had an 18 percent lower likelihood of erectile dysfunction (highest quintile HR 0.82, 95% CI 0.73-0.91). In men under 60, it was a diet high in unhealthful plant foods that tracked with more erectile dysfunction (HR 1.27, 95% CI 1.01-1.60), not the healthful pattern. Measured in: Around 21,000 men in the Health Professionals Follow-up Study assessed with a plant-based diet index and self-reported erectile function.. What could explain it instead: Healthy-user bias again: a high healthful plant-based score travels with lower body weight, more exercise and less smoking, so the whole lifestyle, not the plants alone, may carry the benefit. Association, not cause.. As with any diet-index analysis, the healthful and unhealthful plant-food scores capture broad patterns rather than single foods, and erectile function was self-reported.
Who this may not transfer to:Male-specific; same health-professional cohort, so the same affluence and health-awareness caveats apply.
The study · 1
Yang et al., plant-based diet index and erectile dysfunction in the Health Professionals Follow-up Study · BJU Int 2022;130(4):514-521
Weight loss and activity restored normal erections in about a third of obese men
Overweight men who lost weight and got active over two years saw their erections improve, and about a third recovered normal function.
In 110 obese men with erectile dysfunction and no diabetes or heart disease, a two-year program of a Mediterranean-style diet and increased physical activity raised the mean International Index of Erectile Function score from 13.9 to 17, and 17 of 55 men in the intervention group regained normal erectile function (a score of 22 or more) against 3 of 55 in the control group. Body-mass index, physical activity, blood pressure and markers of inflammation all improved alongside. Measured in: 110 obese men aged 35 to 55 with erectile dysfunction, a body-mass index of 30 or more, and no diabetes, high blood pressure or established heart disease, randomized to a lifestyle program or general information.. A single-center trial of 110 men, and the intervention bundled diet, exercise and regular counseling, so the separate contribution of each cannot be isolated. Men who already had diabetes or heart disease were excluded, so this describes the earlier, more reversible stage.
Who this may not transfer to:Male-specific. Enrolled obese men without diabetes or heart disease, so the recovery rate reflects a relatively early, weight-driven picture rather than long-standing vascular disease.
The study · 1
Esposito et al., effect of lifestyle changes on erectile dysfunction in obese men: a randomized controlled trial · JAMA 2004;291(24):2978-84
Smoking raises ED risk step by step with amount and years
Smoking makes erection problems more likely, and the more and the longer you smoke, the higher the risk.
A dose-response meta-analysis of observational studies found current smokers had a higher risk of erectile dysfunction than men who never smoked, with the risk rising step by step with the number of cigarettes smoked per day and the number of years of smoking. Former smokers sat between never-smokers and current smokers. Measured in: Men across observational studies comparing erectile dysfunction between current, former and never smokers, with data on smoking quantity and duration.. What could explain it instead: Smokers differ from non-smokers in diet, alcohol, exercise and cardiovascular health, all of which affect erections, so part of the association reflects those other habits, not smoking by itself. That former smokers had lower risk than current smokers, and that the risk tracked dose, both point toward a contribution from smoking itself.. The underlying studies are observational, so smoking travels alongside other habits.
Who this may not transfer to:Male-specific. The dose-response pattern and the lower risk in former smokers support stopping as a lever a man can pull himself.
The study · 1
Cao et al., association of quantity and duration of smoking with erectile dysfunction: a dose-response meta-analysis · J Sex Med 2014;11(10):2376-84
Pelvic-floor exercises restored normal erections in about four in ten men
Pelvic-floor (Kegel) exercises restored normal erections in about four in ten men who did them.
In a randomized trial of 55 men with erectile dysfunction, three months of pelvic-floor muscle exercises with biofeedback plus lifestyle advice outperformed lifestyle advice alone; after the control group also took up the exercises, about 40 percent of the men regained normal erectile function and a further third improved. Measured in: 55 men aged 20 or older with erectile dysfunction of at least six months, managed in UK primary care.. A small single trial, and the men were taught by a specialist physiotherapist with biofeedback, so results at home from memory alone may be more modest. The pelvic-floor muscles support the mechanism that keeps blood in the erect penis, which is the rationale for training them.
Who this may not transfer to:Male-specific. Free and self-directed once learned; it also helps the post-void dribble that often accompanies erectile dysfunction.
The study · 1
Dorey et al., pelvic floor exercises for erectile dysfunction · BJU Int 2005;96(4):595-7
Men on PDE5 inhibitors had fewer heart events and lower mortality
Men taking erection pills had fewer heart problems and lived longer, though healthier men may be likelier to take them.
A systematic review and meta-analysis of long-term data found that men using PDE5 inhibitors had lower rates of major cardiovascular events and death than men who did not, rather than the harm once feared. This fits the drugs' biology, since they relax blood vessels, but most of the pooled data is observational. Measured in: Men prescribed PDE5 inhibitors compared with non-users across long-term cohort and trial data.. What could explain it instead: Prescription bias runs strong here: a man well enough to be prescribed and to use an erection drug, and active enough to want it, is on average healthier than one who is not, so some of the apparent benefit reflects who takes the drug rather than the drug itself. What the data does settle is that the older worry about PDE5 inhibitors causing heart attacks is not borne out.. Nitrate heart medicines remain the one firm contraindication.
Who this may not transfer to:Male-specific. Reassuring on safety, but the mortality and event benefit should not be read as a reason to take the drug for the heart.
The study · 1
Soulaidopoulos et al., long-term effects of phosphodiesterase-5 inhibitors on cardiovascular outcomes and death: a systematic review and meta-analysis · Eur Heart J Cardiovasc Pharmacother 2024;10(5):403-412
Testosterone therapy improves erectile function by about 2.3 IIEF points in men with low testosterone
In men whose testosterone is low, testosterone treatment firmed up erections, and the benefit was larger the lower the starting level.
A meta-analysis of 14 randomized placebo-controlled trials in 2,298 men found that testosterone treatment raised erectile-function scores on the International Index of Erectile Function by a mean of 2.31 points (95% CI 1.41 to 3.22) against placebo. The benefit tracked how low testosterone was at the start: men with more marked deficiency (total testosterone below 8 nmol/L) gained about 2.95 points (95% CI 1.86 to 4.03), while men with milder deficiency (below 12 nmol/L) gained about 1.47 points (95% CI 0.90 to 2.03). The improvement applied to men with confirmed low testosterone, not to men with normal levels. Measured in: Hypogonadal men with confirmed low testosterone and sexual symptoms, pooled from 14 randomized placebo-controlled trials of testosterone treatment.. The gain is modest next to what a PDE5 inhibitor delivers, and it applies only where blood testosterone is low, so measuring testosterone before treating is the step that makes it work. Trials ran weeks to months, and testosterone treatment carries its own monitoring needs (blood count, prostate, fertility), so it belongs with a clinician. The weight loss and activity that lift both testosterone and vascular health come first.
Who this may not transfer to:Male-specific. The benefit is confined to men with confirmed low testosterone; it does nothing for erections in men with normal levels, which is why the blood test comes before the prescription.
The study · 1
Corona et al., meta-analysis of results of testosterone therapy on sexual function based on International Index of Erectile Function scores · Eur Urol 2017;72(6):1000-1011
Korean red ginseng improved erection scores in small, weak trials
Korean red ginseng showed a benefit for erections in early trials, though the studies were small and mixed.
A systematic review of randomized trials found that Korean red ginseng improved erectile function scores compared with placebo across the available studies, so the direction of effect is encouraging. The review judged the trials small and methodologically weak, so it is a promising signal rather than a settled result. Measured in: Men with erectile dysfunction in randomized, mostly placebo-controlled trials of Korean red ginseng, pooling several hundred participants.. The trials were small, short and of variable quality, and ginseng products vary widely in what they actually contain. In Chinese medicine ginseng is a warming qi and Yang tonic, so the tradition would reserve it for a depleted, cold, fatigued picture.
Who this may not transfer to:Male-specific. Ginseng can raise blood pressure and interact with blood thinners and some diabetes medicines, so it belongs with a traceable product and, if a man is on those drugs, a practitioner.
The study · 1
Jang et al., red ginseng for treating erectile dysfunction: a systematic review · Br J Clin Pharmacol 2008;66(4):444-50
Low-intensity shockwave therapy improves erectile function by about 4 IIEF points
A course of low-intensity shockwave treatment improved erections in men with vascular erection problems, working best in milder cases.
A meta-analysis of 10 randomized sham-controlled trials in 873 men found that low-intensity extracorporeal shockwave therapy raised erectile-function scores on the International Index of Erectile Function by a mean of 3.97 points (95% CI 2.09 to 5.84) against sham treatment, and made men roughly four times as likely to reach an erection firm enough for penetration (erection hardness score of 3 or more, odds ratio 4.35, 95% CI 1.82 to 10.37). Penile blood flow, measured as peak systolic velocity, also improved (mean +4.12, 95% CI 2.30 to 5.94). The treatment applies low-energy sound waves to the penis to prompt new small-vessel growth, so the benefit is largest in men whose erectile dysfunction is vascular and mild to moderate. Measured in: Men with erectile dysfunction, mostly of vascular origin and mild to moderate severity, in randomized sham-controlled trials of low-intensity extracorporeal shockwave therapy.. Treatment protocols (energy, number of sessions, device) varied widely between the trials, the follow-up was short, and the pooled analysis did not settle how long the improvement lasts, so it sits as an emerging option offered through a qualified clinic and after the lifestyle basics. It is a clinic procedure, not a home device, and many machines marketed direct to consumers are not the studied medical systems.
Who this may not transfer to:Male-specific. Benefit was clearest in men with vascular, mild-to-moderate erectile dysfunction. This is a clinic-based procedure a man arranges rather than does himself, and how long the improvement holds beyond the short trial windows is not yet established.
The study · 1
Sokolakis & Hatzichristodoulou, clinical studies on low intensity extracorporeal shockwave therapy for erectile dysfunction: a systematic review and meta-analysis of randomised controlled trials · Int J Impot Res 2019;31(3):177-194
L-citrulline firmed erections in half of men with mild ED in one small trial
A daily L-citrulline supplement firmed up erections in half of the men with mild problems, in one small study.
In a small single-blind, non-randomized, fixed-sequence study of 24 men with mild erectile dysfunction, each man took placebo for a month and then 1.5 grams a day of L-citrulline for a month. The erection-hardness score rose from a level judged not hard enough for penetration to one judged hard enough in 12 of 24 men (50 percent), against 2 of 24 (about 8 percent) while on placebo. No side effects were reported. Measured in: 24 men, mean age around 56, with mild erectile dysfunction (an erection hardness score of 3).. A single small trial in mild cases only, with a short treatment period. L-citrulline is a precursor the body converts toward nitric oxide, the same pathway PDE5 inhibitors act on, which is the rationale, but the effect was far smaller than a drug and untested in more severe erectile dysfunction.
Who this may not transfer to:Male-specific and only tested in mild erectile dysfunction; not a substitute for evaluating vascular risk.
The study · 1
Cormio et al., oral L-citrulline supplementation improves erection hardness in men with mild erectile dysfunction · Urology 2011;77(1):119-22
Heart And Vascular
ED raises later cardiovascular risk by about 40 percent
Erection problems often appear years before a heart attack or stroke and signal higher heart risk.
A meta-analysis of prospective cohort studies found that men with erectile dysfunction had a higher subsequent risk of cardiovascular events, including a relative increase on the order of 40 percent or more for total cardiovascular events, along with raised risks of heart attack, stroke and death from any cause, compared with men without erectile dysfunction. Measured in: Men in prospective cohort studies with baseline erectile-function status followed for later cardiovascular events and mortality.. What could explain it instead: Erectile dysfunction and heart disease share the same roots, high blood pressure, diabetes, smoking, obesity and unhealthy arteries, so erectile dysfunction is best read as an early readout of vascular health rather than an independent cause of heart attacks. The penis has smaller arteries than the heart, which is why they narrow sooner, so erection trouble appears before heart disease.. The size of the association depends on how erectile dysfunction was measured and on the population studied, and it was larger in younger and intermediate-risk men.
Who this may not transfer to:Male-specific. The practical takeaway is that new erectile dysfunction is a reason to check blood pressure, glucose and lipids, not only to reach for a pill.
The study · 1
Vlachopoulos et al., prediction of cardiovascular events and all-cause mortality with erectile dysfunction: a systematic review and meta-analysis of cohort studies · Circ Cardiovasc Qual Outcomes 2013;6(1):99-109
The lifestyle work that repairs the artery
Aerobic exercise is the strongest self-directed lever. It repairs the blood vessels that produce an erection, so the benefit is largest in men whose cause is vascular or metabolic and in those who started more severely affected. The tested dose is in What To Do First below. It works on the cause, and it is free.
Diet and weight loss work on the same blood vessels. A Mediterranean-style diet, built on olive oil, fish, vegetables, legumes and whole grains, tracks with a lower risk of developing erectile dysfunction, most strongly in men under 60, and a diet weighted toward whole plant foods points the same way. Weight loss carries the clearest before-and-after evidence, and in obese men the gains came alongside lower blood pressure and less inflammation.
Quitting smoking pays back on the same timeline. Smoking narrows the arteries that fill the penis, and the risk rises step by step with the number of cigarettes a day and the number of years, so it falls again as the years since quitting add up.
Pelvic-floor training
The muscles at the base of the penis help trap blood to hold an erection, and they can be trained. In a randomized trial, three months of pelvic-floor (Kegel) exercises with biofeedback outperformed lifestyle advice alone. They are free once learned, carry no side effects, and stack on top of the exercise and diet work.
PDE5 inhibitor tablets, after the basics
The oral tablets are the most effective medical option. They come after the basics because the lifestyle work addresses the cause while the tablets treat the symptom. Sildenafil (Viagra), tadalafil (Cialis) and vardenafil work about equally well and differ mainly in timing: tadalafil lasts up to about 36 hours and also comes as a low daily dose, and sildenafil and vardenafil act over a shorter window. They need sexual stimulation to work, and headache, flushing and nasal congestion are the common side effects. On long-term data, men taking these drugs had fewer major cardiovascular events and lower mortality than men who did not, though much of that data is observational.
A PDE5 inhibitor must never be combined with nitrate heart medicines. The two together can drop blood pressure to a dangerous level.
Vacuum devices, and testosterone only when it is low
A vacuum erection device is a drug-free mechanical option. A cylinder draws blood into the penis, and a constriction ring at the base holds it there for intercourse. It works independently of the arteries, so it suits men who cannot or prefer not to take tablets, and it is bought once.
Testosterone is not a general erection treatment. It helps only where blood testosterone is low, which is why the blood test comes before the prescription. The effect is modest next to a PDE5 inhibitor, it does nothing for erections in men with normal levels, and treatment carries its own monitoring for blood count, prostate and fertility, so it belongs with a clinician. The weight loss and activity that lift both testosterone and vascular health come first.
Shockwave therapy, at the emerging edge
Low-intensity shockwave therapy applies low-energy sound waves to the penis to prompt new small-vessel growth, so it targets the blood supply itself. The clearest benefit is in vascular, mild-to-moderate cases. It sits at the emerging edge because the treatment protocols varied widely between trials and how long the improvement lasts is not yet settled. It is a clinic procedure arranged with a qualified provider, and many devices marketed direct to consumers are not the studied medical systems.
Supplements at the emerging edge
Two supplements show an encouraging signal without settling it. Korean red ginseng (Panax ginseng) improved erection scores against placebo across small, methodologically weak trials, so it reads as a promising direction. L-citrulline firmed erections in one small study of men with mild erectile dysfunction; it is a precursor the body converts toward nitric oxide, the same pathway the tablets act on. Neither replaces the levers above, and the caution below about adulterated erection products applies to anything bought online.
What To Do First
None of the first steps needs a prescription, and the order matters less than doing a few of them steadily for a few months. The lifestyle work is yours to start today; the tablets and any medication changes are a conversation with whoever prescribes for you.
New erectile dysfunction is an early warning about the arteries, so a blood-pressure, glucose and cholesterol check is the sensible first move. A clinician can run these, and direct-to-consumer panels will do blood sugar, lipids and testosterone on your own schedule if you would rather start there.
Aerobic exercise is the best-evidenced self-directed lever. Aim for about 40 minutes of moderate-to-vigorous activity four times a week, brisk enough to raise your breathing, and hold it over months. This repairs the blood vessels that produce an erection.
Build meals on olive oil, fish, vegetables, legumes and whole grains, and cut sugary drinks and ultra-processed food. This is the eating pattern linked to the lowest risk, and it works on the same arteries the exercise does.
The muscles that hold blood in an erection can be trained. Squeeze the muscle you would use to stop your urine mid-flow, hold a few seconds, release, and build up daily sets. It costs nothing and stacks on top of the exercise and diet work.
Smoking narrows the arteries that fill the penis, and risk falls as the years since quitting add up. Heavy drinking blunts erections in the moment, so lighter is better here too.
If you want a faster result while the lifestyle work takes hold, a PDE5 inhibitor works for most men. It is a shared decision with a prescriber, who will check it is safe with your other medicines, and it must never be taken with nitrate heart drugs.
Go Deeper
- Nitric oxide and the endothelium: the artery-lining signal that produces an erection, the exact thing the tablets amplify and the lifestyle work restores.
- Mediterranean diet: the eating pattern linked to the lowest erectile-dysfunction risk, built plate by plate.
- Zone 2 cardio and resistance training: the aerobic base and the muscle work that together repair the vascular and metabolic causes.
- High blood pressure: the neighboring vascular problem behind both erectile dysfunction and heart risk, and worth treating in its own right.
The Chinese Medicine View
The Chinese Medicine View
Chinese medicine has read impotence, yang wei (陽痿), literally the wilting of yang, for two thousand years, and it locates the problem in the Kidneys, the Liver and the flow of Qi and Blood to the region. This maps onto the modern picture better than most classical correspondences, because the Kidney in Chinese medicine governs the reproductive drive and the deep reserves that decline with age, and the Liver governs the free flow that stress interrupts. Read the patterns below as a lens on the man, not a diagnosis of his arteries. Chinese medicine would also caution here: warming Kidney-Yang tonics are the wrong direction for a man whose picture is Damp-Heat (a heavy, hot, congested lower burner), and the unregulated erection products sold as herbal have a documented history of being adulterated with undeclared pharmaceutical drugs, so authentic herbs belong with a practitioner and a traceable supply.
Weak or absent erections with cold limbs, a sore lower back and knees, low drive, and tiredness that worsens in winter. The classical direction is to warm and tonify Kidney Yang. This is the depleted, cold picture that fits an older or exhausted man, and where warming tonics such as ginseng were traditionally reserved.
Erectile dysfunction with premature aging, night sweats, tinnitus, and dryness, the reserves running low while the fire has not gone cold. The direction is to nourish Jing and Yin, not to add more heat.
Firmness that is fine alone but fails under pressure, with irritability, a tight chest and sighing, tied to stress and performance anxiety. The direction is to soothe the Liver and move stuck Qi. This is the pattern behind much of what modern medicine calls psychological erectile dysfunction.
Erectile dysfunction with a heavy, hot, congested feeling in the lower body, a bitter taste, scanty dark urine or genital dampness, often in a heavier, richer-living man. Here Chinese medicine clears Damp-Heat and would caution against the warming Yang tonics that suit the deficient patterns.
When to See Someone
Most erectile dysfunction is manageable and much of it improves. It can also be the first sign of a circulation problem, so some of these signs are worth acting on, a few the same day:
- Erectile dysfunction with chest pain or tightness, breathlessness on exertion, or a fluttering or racing heart. Treat this as a possible heart problem and seek urgent care, not a bedroom issue(seek urgent care)
- A painful erection that will not go down after several hours (priapism), which is a medical emergency that can damage the penis and needs same-day care(seek urgent care)
- New erectile dysfunction that came on suddenly, especially with numbness, weakness, difficulty passing urine or loss of bladder or bowel control, which can point to a nerve or spinal cause
- Erectile dysfunction alongside cramping leg pain when walking that eases with rest, a sign of narrowed arteries elsewhere worth assessing
- New erectile dysfunction in a man with diabetes, high blood pressure, high cholesterol or a family history of early heart disease. This is the group for whom it is most useful as an early warning, and a blood-pressure, glucose and lipid check (which you can arrange yourself through direct-to-consumer testing) is the sensible next step
- Low sex drive as much as poor erections, with fatigue and low mood, which can point to low testosterone worth measuring before treating
- Erectile dysfunction that began soon after a new medication, which is worth reviewing with the prescriber rather than stopping on your own
- Never take a PDE5 inhibitor tablet with nitrate heart medicines, as the combination can drop blood pressure to a dangerous level
None of this is meant to alarm you. Erectile dysfunction is common, treatable, and often the earliest sign a man gets that his circulation needs attention, so acting on it early protects the heart as much as the sex life. The lifestyle work is yours to start today; the tablets and any medication changes are a conversation with whoever prescribes for you.
Common Questions
Is erectile dysfunction a sign of heart disease?
Often, yes. The arteries that fill the penis are narrower than the ones feeding the heart, so they show fatty build-up and stiffening first. Men with erectile dysfunction carry roughly a 40 percent higher risk of a later cardiovascular event, and the erection trouble can appear years before a heart attack or stroke. New, unexplained erectile dysfunction is a reason to check blood pressure, glucose and cholesterol, as well as to treat the erection.
What is the single most effective thing I can do?
Repair the arteries with the lifestyle work, starting with aerobic exercise. About 40 minutes of moderate-to-vigorous activity four times a week, held over months, is the best-evidenced self-directed lever, and it improves erections most in the vascular cases that make up the majority. Combined with a Mediterranean way of eating and weight loss, this restored normal function in about a third of obese men over two years. It also lowers heart risk, which no tablet does as directly.
Do the tablets work, and are they safe?
They work for most men. About 57 percent of intercourse attempts succeeded on sildenafil against 21 percent on placebo, and sildenafil, tadalafil and vardenafil are similar in effectiveness, differing mainly in how long they last. On long-term data, men taking them had fewer heart events. They must never be combined with nitrate heart medicines, and they are a shared decision with a prescriber who can check them against your other drugs. They relax blood vessels to produce an erection; the lifestyle work repairs those blood vessels, and the tablets do not.
Should I get my testosterone checked?
Worth it if low desire is as prominent as the erection trouble, alongside fatigue, low mood or loss of morning erections. Testosterone treatment firms erections only where blood levels are low, raising erectile-function scores by about 2.3 points on the 30-point erectile-function domain in men with confirmed deficiency, and doing nothing for men with normal levels. That is why the blood test comes before any prescription. The effect is modest next to a tablet, and treatment needs its own monitoring, so it belongs with a clinician.
Do supplements or "male enhancement" pills work?
The evidence is thin. Korean red ginseng and L-citrulline each showed an encouraging signal in small trials, but nothing settled, and neither replaces the lifestyle levers. Unregulated erection products sold online have a long, documented record of being spiked with undeclared sildenafil-type drugs, which is dangerous for a man on nitrates or other medicines. Any herbs belong with a practitioner and a traceable supply.
Is it all in my head?
Usually not, at least not on its own. Most erectile dysfunction in men over 40 has a physical, vascular component even when stress is also present. A useful clue is morning and solo erections: if those are reliable but sex with a partner is difficult, or the onset was sudden and tied to a stressful event, the psychological share is larger, and reducing performance pressure and treating anxiety help. Even then, the heart-and-metabolism check is worth doing, because the two often travel together.
Explore Related
Other pages this one connects to, by the evidence they share, the outcomes they touch, and the ground they cover.
All 15 sources on this page independently checked and cross-referenced.
Thomas Dehli, Founder & Editor, Sacred Lotus
Sacred Lotus has published Chinese medicine reference material since 2001. Integrative pages are held to the same standard as the herb and formula library: cite the source, grade the claim at its real strength, and say where the research has not looked. This page is educational and it is not medical advice. Last reviewed and updated August 9, 2026.
Evidence strength
How confidently the research supports a claim. Strength describes the evidence, not our endorsement.