Erectile Dysfunction and Heart Disease: Why Your Erection Is an Early Warning Sign

In this guide

• An erection is a blood-vessel test
• How an erection actually works
• What the big studies found
• Why the penis gives the warning first
• Who should pay the most attention
• What a doctor will check
• What protects your heart and your erections
• Why pills are not the end of the story
• My take

I am not a doctor. This is not medical advice. The facts in this article come from the NHS, Mayo Clinic and peer-reviewed studies on PubMed. The opinions are mine.

In 14 years working as a porn actor, I have heard every possible joke about erections. On set, a man’s erection is treated like equipment. If it works, nobody mentions it. If it does not, everybody waits and pretends not to look at the clock.

What almost nobody says, on set or anywhere else, is that an erection is also a medical signal. When it starts failing regularly, the problem is not always in your head or in the bedroom. Sometimes it is in your arteries. And the same arteries feed your heart.

That is what this guide is about. Not to scare you, but because a man who understands this message early has years to act on it.

An erection is a blood-vessel test

Mayo Clinic puts it very directly: erectile dysfunction can be an early warning sign of current or future heart and blood vessel problems (Mayo Clinic: ED, a sign of heart disease?). The NHS lists the same physical causes again and again: narrowing of the blood vessels, high blood pressure, high cholesterol and diabetes (NHS: Erection problems).

Read that list again. Those are not “sex problems”. Those are the classic risk factors for heart attacks and strokes.

I already explained in my guide to diet for erectile health that the penis is basically a test of your circulation. This article goes one step further: what happens when that test starts giving bad results.

How an erection actually works

An erection is a hydraulic event. When you are aroused, nerves release chemical signals, especially nitric oxide, that tell the smooth muscle in the walls of the penile arteries to relax. The arteries widen, blood rushes into two spongy chambers called the corpora cavernosa, and the veins that normally drain blood are squeezed shut. Pressure builds, and you get hard.

Every step of that depends on the inner lining of the blood vessels, the endothelium. When the endothelium is healthy, it produces nitric oxide easily and the vessels open on demand. When it is damaged by smoking, high blood sugar, high blood pressure, high cholesterol or chronic inflammation, the vessels stop responding as well. Less blood comes in, less pressure builds, and the erection is softer or shorter.

That same endothelial damage is the first step of atherosclerosis, the build-up of fatty plaque in the arteries that eventually causes most heart attacks. In other words: erection problems and heart disease often share the same root.

Your penis is not lying to you. If it keeps failing, it may be the first part of your body honest enough to tell you something is wrong with your blood vessels.

What the big studies found

This is not a theory from a men’s magazine. It has been tested in large groups of men followed for years.

• The Prostate Cancer Prevention Trial data (JAMA, 2005). Researchers followed thousands of men aged 55 and older who were in the placebo group of a large trial. Men who developed erectile dysfunction during follow-up had a higher risk of later cardiovascular events such as heart attack, angina and stroke. Men who had ED at any point had about a 45% higher risk than men without it. The authors concluded that ED was as strong a predictor as smoking or a family history of heart attack (Thompson et al., JAMA 2005).
• The Olmsted County study (Mayo Clinic Proceedings, 2009). Mayo Clinic researchers followed more than 1,400 men without known heart disease for about ten years. Men with ED had a significantly higher risk of developing coronary artery disease, and the association was strongest in the youngest group, men in their 40s (Inman et al., Mayo Clin Proc 2009).
• Large reviews and meta-analyses. Pooled analyses of prospective studies have found that men with ED have a higher risk of cardiovascular disease, coronary heart disease, stroke and death from all causes, independent of the usual risk factors (Dong et al., J Am Coll Cardiol 2011).

The message from the research is consistent. ED does not mean you will have a heart attack. But it is a reason to check.

Why the penis gives the warning first

Why would the penis show trouble before the heart? Researchers have proposed a simple and elegant explanation called the artery size hypothesis. The arteries that supply the penis are small, roughly 1 to 2 millimetres wide. The main coronary arteries of the heart are larger, around 3 to 4 millimetres. The same amount of plaque or endothelial damage will reduce blood flow in a small vessel much earlier than in a large one (Montorsi et al., Am J Cardiol 2005).

Several studies of men with coronary artery disease found that many of them had erection problems before they ever had chest symptoms, on average by about three years (Montorsi et al., Eur Urol 2003). Some reviews describe a window of up to five years.

That window is the whole point. Two to five years is enough time to lower your blood pressure, fix your blood sugar, stop smoking, lose weight and change the direction of your health. Most men waste it because they are too embarrassed to say the word “erection” to a doctor.

Who should pay the most attention

Not every erection problem is about your arteries. Stress, anxiety, alcohol, tiredness, relationship tension and some medicines can all cause it. I wrote separately about performance anxiety and about ED in young men, where psychological causes are more common.

There are some clues that point more towards a physical, vascular cause:

• The problem came on gradually and keeps getting worse over months.
• You rarely or never wake up with an erection any more. I explained why in morning erections: a healthy body produces erections during sleep, so losing them suggests the hardware, not the mind.
• It happens in every situation: with a partner, alone, with different partners.
• You have risk factors: smoking, high blood pressure, diabetes or prediabetes, high cholesterol, obesity, little exercise, or a family history of early heart disease.

If you recognise yourself in that list, do not wait. And if you ever have chest pain, shortness of breath or pain spreading to your arm or jaw, that is an emergency, not a sexual health question.

What a doctor will check

Many men avoid the doctor because they imagine something humiliating. In reality, a first visit for ED is mostly talking and blood tests. The NHS says a GP will usually ask about your lifestyle and relationships, check your blood pressure and may arrange blood tests and a physical exam.

Typical checks include:

• Blood pressure. High blood pressure damages arteries silently.
• Cholesterol and lipids.
• Blood sugar or HbA1c, to look for diabetes or prediabetes. Diabetes is one of the strongest causes of ED.
• Testosterone, in some cases. Low testosterone affects desire more than blood flow, but it can play a part. My guide on testosterone and sex drive explains what is realistic.
• Weight and waist size.

An international expert panel, the Princeton III consensus, recommended that every man presenting with ED be assessed for cardiovascular risk, and that younger men with ED deserve particular attention because the warning comes earlier for them (Nehra et al., Mayo Clin Proc 2012).

What protects your heart and your erections

Here is the good part: the habits that protect your heart are almost exactly the habits that protect your erections. You are not choosing between two programmes. It is one programme.

• Stop smoking. Nicotine and smoke damage the endothelium directly. I covered it in smoking, vaping and erections.
• Move every day. Aerobic exercise improves endothelial function and blood pressure. My exercise and erections guide covers how much training the studies used.
• Eat like the Mediterranean, not like a petrol station. A randomised trial in obese men with ED found that weight loss and a Mediterranean-style diet restored normal erectile function in about one in three men after two years (Esposito et al., JAMA 2004).
• Watch the alcohol. A drink can relax you; regular heavy drinking damages blood vessels and hormones. More in alcohol and sex.
• Sleep and stress. Poor sleep and chronic stress raise blood pressure and lower testosterone.
• Treat what you find. If the blood tests show high blood pressure, cholesterol or blood sugar, take the treatment seriously. That is the real erection medicine.

In my job I see the difference every week. The men who last longest in this industry are not the ones with the best pills. They are the ones who sleep, train, eat properly and do not smoke. Their bodies work because their blood vessels work.

Why pills are not the end of the story

Erection pills like sildenafil (Viagra) and tadalafil (Cialis) are effective. I explained how they work in my guide to Viagra vs Cialis. But they work by boosting the nitric oxide pathway for a few hours. They do not clear plaque from your arteries, lower your blood pressure or fix diabetes.

The danger is that a pill hides the message. A man takes it, it works, and he never asks why he needed it in the first place. Meanwhile the arteries keep narrowing.

There is also a safety reason to see a doctor first. These medicines must never be combined with nitrates, which some heart patients take for chest pain, because together they can drop blood pressure dangerously. The NHS is clear that erection medicines should be prescribed after a proper assessment.

My take

I have spent my career in an industry where an erection is part of the job description, so I understand the shame men feel when theirs stops cooperating. I have seen young performers panic, hide it, buy pills online and never talk to anyone.

My advice is the opposite. If your erections are changing and there is no obvious reason like stress, alcohol or a new medicine, treat it like a warning light on your car dashboard. You would not put tape over it. You would get the car checked.

Go to a doctor, say the words, get your blood pressure, cholesterol and blood sugar measured. Best case, everything is fine and you can work on the psychological side with a clear mind. Worst case, you found a heart problem years before it found you. Either way, you win.

Your sex life and your heart are not two separate topics. They are the same blood, the same vessels, the same body. Look after one and you are looking after the other.

For the human stories behind this industry, read my columns on House of Maximo. Follow my work at maximogarciaworld.com, and for the 18+ side, fuckingpornstars.net.

Sources

1. Mayo Clinic. Erectile dysfunction: A sign of heart disease?
2. NHS. Erection problems (erectile dysfunction).
3. Thompson IM et al. Erectile dysfunction and subsequent cardiovascular disease. JAMA, 2005.
4. Inman BA et al. A population-based, longitudinal study of erectile dysfunction and future coronary artery disease. Mayo Clinic Proceedings, 2009.
5. Dong JY et al. Erectile dysfunction and risk of cardiovascular disease: meta-analysis of prospective cohort studies. Journal of the American College of Cardiology, 2011.
6. Montorsi P et al. The artery size hypothesis: a macrovascular link between erectile dysfunction and coronary artery disease. American Journal of Cardiology, 2005.
7. Montorsi F et al. Erectile dysfunction prevalence, time of onset and association with risk factors in 300 consecutive patients with acute chest pain and angiographically documented coronary artery disease. European Urology, 2003.
8. Nehra A et al. The Princeton III Consensus recommendations. Mayo Clinic Proceedings, 2012.
9. Esposito K et al. Effect of lifestyle changes on erectile dysfunction in obese men. JAMA, 2004.