Blood flow and erections | Veedma's evidence-based men's health articles

Can kale really help erections? What the science actually says

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

Nov 24, 2025 · 12 min read

Kale isn’t a proven standalone treatment for erectile dysfunction, but its dietary nitrates and antioxidants can support endothelial nitric oxide signaling. This is the pathway that relaxes penile blood vessels to allow engorgement. Because ED is often related to vascular and metabolic health and becomes more common with age, the bigger win is using a ...

Does nicotine increase testosterone or quietly wreck it?

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

Nov 20, 2025 · 10 min read

In observational studies, male cigarette smokers average about 15% higher total testosterone and 13% higher free testosterone than non-smokers, likely because nicotine alters liver hormone metabolism and slows testosterone breakdown. That “smoker’s paradox” can still coincide with erectile dysfunction and infertility as smoking damages blood vessels and testosterone-producing Leydig cells, so higher lab numbers don’t ...

Erectile dysfanction in men: The causes doctors look for and a plan that works

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

Nov 01, 2025 · 15 min read

Erectile dysfunction is most often treatable, and in many men it is driven by blood flow problems, pelvic floor muscle issues, or a stress anxiety loop rather than “low testosterone” alone. The bigger point is that new erectile dysfunction can also be an early warning sign of cardiovascular risk, so a real workup is worth ...

Low libido: When the brain is the issue

Dr. Jonathan Pierce, PhD: Clinical Psychologist & Neuroscience Specialist

Oct 19, 2025 · 16 min read

Low libido in men is often a brain-and-life issue. Changes in reward and stress signaling (including dopamine- and norepinephrine-driven “wanting”) can lower sexual desire for weeks or months even when testosterone is normal. About 15–25% of men report reduced desire at some point. Here’s how mood, stress, medications, hormones, and daily habits interact, and what ...