Blood flow and erections

At what age does a man stop ejaculating? Understanding the changes in your body

Dr. Alexander Grant, MD, PhD: Urologist & Men's Health Advocate

Jan 19, 2026 · 12 min read

There is no specific age when a man stops ejaculating, and many men can ejaculate throughout life, though semen volume and the “force” of ejaculation often decline with age.,[1] If ejaculation changes suddenly or stops completely, it is worth getting checked because the cause is often identifiable and treatable. “Most men don’t hit a birthday ...

Worst foods for erectile dysfunction: How your diet affects your erection quality

Dr. Alexander Grant, MD, PhD: Urologist & Men's Health Advocate

Jan 15, 2026 · 11 min read

Diets high in processed sugars, trans fats, and excessive sodium (a typical “Western diet”) can worsen erectile dysfunction by damaging the endothelium and reducing nitric oxide–driven vasodilation needed to fill and trap blood in the penis. Because penile arteries are smaller and show vascular injury earlier than the heart, your grocery list can affect erection ...

How much curve is too much? The science of penile shape and Peyronie’s

Dr. Alexander Grant, MD, PhD: Urologist & Men's Health Advocate

Jan 12, 2026 · 10 min read

A congenital penile curve of up to about 30° is common and usually “normal” if it doesn’t cause pain or interfere with intercourse, but a new or worsening bend is most often Peyronie’s disease, where scar plaque in the tunica albuginea blocks expansion and pulls the erection toward it. Here’s how to tell benign anatomy ...

Does alcohol cause inflammation? What men need to know about the immune response

Dr. Alexander Grant, MD, PhD: Urologist & Men's Health Advocate

Jan 04, 2026 · 11 min read

Alcohol causes systemic, dose-dependent inflammation by producing acetaldehyde and activating liver immune cells (Kupffer cells) to release pro-inflammatory cytokines such as TNF-α and IL-6, while also weakening the gut barrier so bacterial toxins can enter the bloodstream. That immune “alarm” can keep firing long after the buzz fades—affecting blood vessels, testosterone production, and sexual function. ...

Does creatine cause erectile dysfunction? The evidence says no

Dr. Alexander Grant, MD, PhD: Urologist & Men's Health Advocate

Jan 01, 2026 · 10 min read

In healthy adults, creatine monohydrate has not been shown in human studies to cause erectile dysfunction or lower libido. Because creatine’s main job is recycling ATP for muscle energy—and the rumor often comes from confusing kidney-disease–related ED with supplement use—here’s what the evidence supports and what to do if erections change. “When patients ask ‘does ...

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At what age does a man stop ejaculating? Understanding the changes in your body

Worst foods for erectile dysfunction: How your diet affects your erection quality

How much curve is too much? The science of penile shape and Peyronie’s

Does alcohol cause inflammation? What men need to know about the immune response

Does creatine cause erectile dysfunction? The evidence says no