Men get weird when you say this out loud, then they ask in private. So here it is in public.
An erection is hydraulics. The arteries that feed the penis are small. They show endothelial trouble earlier than a big coronary sometimes does. That is why a new, persistent problem in bed can show up years before a “real” heart scare. Montorsi’s “artery size” idea and the Princeton consensus papers are the adult version of this conversation. Urology and cardiology have been saying versions of it for a long time. The internet turned it into either shame or a sildenafil coupon.
What it is not
It is not a testosterone oracle. Low T can participate. So can sleep apnea, SSRIs, booze, a relationship that is going badly, and a bike saddle that hates you. If you skip the boring causes and go straight to a clinic that sells “optimization,” you will buy a story.
Morning erections (nocturnal penile tumescence, if you want the cold phrase) ride on REM sleep. If you drink, snore, or sleep five hours, the mornings go first. Fix the night before you assume the vessels are toast.
What I would actually do
Get blood pressure done properly, not once at a pharmacy while you are late. Fasting lipids, including ApoB if you can. Glucose or HbA1c. If you are over 40 and this is new, say it to a doctor in a full sentence. The useful ones will hear “vascular” and not “joke.”
Exercise that actually raises heart rate and lifting that you stick with both help the same endothelium the ads pretend is a mystery. Smoking is not a close call. Neither is ignoring 150/95 because you “feel fine.”
Pills that help you have sex can be appropriate. They do not make the arterial problem go away. Treat them as a bridge and a clue, not as the whole protocol. PDE5 inhibitors have contraindications (nitrates). That is a pharmacist and a physician problem, not a cart problem.
I am not diagnosing you. I am saying the canary is small, and people keep asking about the song instead of the air.
I will not pretend I have a clinic. I will say I have sat in a GP office and said the sentence out loud, and the useful next step was a cuff and a lipid panel, not a peptide salesman.
Red flags that are not a blog
Sudden loss with chest symptoms, trauma, priapism, a new neurological deficit. Those are emergency or urgent clinic, not “optimize your stack.”
Common questions
Is this always heart disease? No. It is a reason to look at vessels, sleep, meds, and mood. Not a diagnosis of a blockage.
TRT first? Only if T is actually low on a proper morning blood draw, twice, with a clinician who knows the rest of the picture. Empiric TRT for erections is how you miss apnea and hypertension.
Bike seats? Real for some riders. Try a better saddle before you assume you need a stent narrative.
Porn and anxiety? Also real. Vascular workup still belongs on the list after 40 when the change is new and persistent.
Sources
- Montorsi P, et al. The artery size hypothesis: a macrovascular link between erectile dysfunction and coronary artery disease. Am J Cardiol. 2005.
- Nehra A, et al. Princeton Consensus (expert panel statements on ED and cardiovascular risk).
- Thompson IM, et al. Erectile dysfunction and subsequent cardiovascular disease. JAMA. 2005.
- AUA / AHA patient-facing summaries on ED as a cardiovascular risk marker.
Science edit: Lena Park. This is not a diagnosis and it is not a prescription.
