Men's Health

How to Fix Erectile Dysfunction (ED)

10/07/2026 · ทีมงาน APEXMAN

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How can you fix erectile dysfunction?

Erectile dysfunction (ED) means the penis does not get fully hard, or does not stay hard long enough. It is genuinely treatable — usually with three approaches working together

  • Lifestyle changes — exercise regularly, quit smoking, cut back on alcohol, get enough sleep
  • Manage underlying conditions — diabetes, high blood pressure and high cholesterol are the leading causes of ED
  • PDE5 inhibitor medicines — such as sildenafil (Viagra, Sidegra) and tadalafil (Cialis), used under the guidance of a doctor or pharmacist

Last updated: July 2026 · Sources: NHS and MedlinePlus

What is erectile dysfunction (ED)?

Erectile dysfunction is when the penis does not become erect, does not get fully hard, or does not stay hard long enough for sex — whether you call it ED, impotence, or simply "not being able to get it up", it all describes the same condition. Occasional trouble — when you are exhausted, stressed, or have been drinking — is normal and happens to most men at some point. But when it happens often or continues for several weeks, that is your body telling you something, and it deserves a proper look rather than being brushed aside.

According to the NHS, ED is common — especially in men over 40 — and in most cases the cause is treatable. Many men never talk to anyone about it out of embarrassment and miss the chance to treat it early, even though today's treatment options work very well.

What causes ED — body or mind?

The causes of ED fall into two broad groups, and many men have both at the same time.

Type of cause Examples What to look for
Physical Diabetes, high blood pressure, high cholesterol, vascular disease, low testosterone, side effects of some medicines, smoking, alcohol Tends to develop gradually, and affects morning erections too
Psychological Stress, performance anxiety, depression, relationship problems Often situational — morning erections are usually still normal

Here is what many people do not realise: an erection is fundamentally a blood-vessel event. ED caused by vascular problems can be an early warning sign of heart and circulatory disease, sometimes years in advance — so a health check when symptoms start is always worthwhile.

At what age does ED start?

There is no fixed age. ED becomes more common as men get older — noticeably so after 40 — but it is not "just part of getting old" that you have to accept, and men in their 20s and 30s can get it too. In younger men the cause is more often stress and anxiety than blood-vessel problems. Whatever your age, if the problem persists, it is worth finding the cause.

5 ways to fix erectile dysfunction

The short answer: start with lifestyle, and add medicine when needed.

  1. Exercise regularly — 150 minutes of cardio a week directly improves blood flow, and research shows exercise genuinely reduces the severity of ED
  2. Quit smoking, cut back on alcohol — nicotine constricts blood vessels, and heavy drinking suppresses erections both short- and long-term
  3. Manage stress and sleep — performance anxiety is a leading cause in younger men, and poor sleep also lowers testosterone
  4. Treat underlying conditions — keep diabetes, blood pressure and cholesterol under control, and review your current medicines with your doctor, as some can affect erections
  5. PDE5 inhibitor medicines — the most clearly effective option when used correctly; see the next section

What medicines treat ED?

The standard ED medicines used worldwide are the PDE5 inhibitors, which increase blood flow to the penis when you are sexually aroused. Two active ingredients dominate in Thailand

Active ingredient Well-known brands Starts working Lasts Best for
Sildenafil Viagra, Sidegra, Kamagra ~30-60 min ~4-6 hours Occasional use, when you can plan ahead
Tadalafil Cialis, Talafil, Apcalis SX ~30-60 min Up to 36 hours Not wanting to watch the clock, a more spontaneous feel

Both medicines only work with sexual stimulation — they are not aphrodisiacs, and they will not cause an erection on their own. The single most important rule: never combine them with nitrate medicines (the under-the-tongue tablets for heart conditions), as blood pressure can drop dangerously. Anyone with heart disease, abnormal blood pressure, or liver or kidney disease should always talk to a doctor first.

📖 Read more: What Is Viagra (Sildenafil)? Full Guide · Cialis (Tadalafil) vs Viagra: What's Different?

What should you eat for better erections?

What is good for your heart is good for your erections. Think Mediterranean: vegetables, fruit, fish, nuts, whole grains and olive oil, with less fried food, sugar and processed meat. As for herbal supplements marketed for performance — most lack solid medical evidence, and some are secretly laced with undeclared drugs, which is more dangerous than taking a real, properly dosed medicine. If you want results you can count on, PDE5 medicines used with proper guidance are the more direct route.

When to see a doctor

  • Symptoms persist beyond 2-3 months, or keep getting worse
  • No erections at all, even on waking — this points to a physical cause
  • You have underlying conditions such as diabetes, high blood pressure or heart disease
  • You have used a PDE5 medicine correctly and it still is not working

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Frequently asked questions

Does ED go away on its own?

If the cause is temporary stress or fatigue, things usually improve once your body and mind recover. But if the cause is vascular or an underlying condition, it will not resolve by itself and tends to worsen gradually — treat the root cause.

What is the fastest way to fix ED?

PDE5 inhibitors such as sildenafil work within 30-60 minutes and are the fastest-acting option. Use the correct dose and check the contraindications first — and for the long term, combine them with lifestyle changes.

Can young men get ED?

Yes, and it is not rare. In men in their 20s and 30s the main culprits are performance anxiety, stress and poor sleep rather than blood-vessel problems. The good news: this group responds very well to treatment.

Is ED related to hormones?

It can be — low testosterone reduces sex drive and weakens erections, and often comes with fatigue, mood swings and loss of muscle. A blood test for hormone levels helps rule this cause in or out.

This article is for general education only. It is not a diagnosis or personalised medical advice. All medicines have contraindications and side effects — please consult a doctor or pharmacist before use.

References

  1. NHS — Erection problems (erectile dysfunction)
  2. NHS — Causes of erection problems
  3. NHS — Sildenafil (Viagra)
  4. MedlinePlus — Tadalafil