Lifestyle & longevity | Veedma's evidence-based men's health articles

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 ...

Veedma and testosterone: What raises levels naturally and when treatment makes sense

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

Oct 30, 2025 · 12 min read

The most reliable ways for men to raise testosterone naturally are to lose excess abdominal fat, protect consistent sleep, and reduce chronic stress. This guide explains what “low T” means on labs, how to test correctly, and how to discuss fertility-preserving options before considering injections. “Testosterone is not a mystery lottery. In most men, extra ...

Can Vitamin D impact testosterone?

Dr. Susan Carter, MD: Endocrinologist & Longevity Expert

Oct 28, 2025 · 15 min read

Vitamin D can modestly raise testosterone in men who are truly vitamin D deficient (25-hydroxyvitamin D below 20 ng/mL), likely because the testes contain vitamin D receptors and activation enzymes that may influence Leydig cell testosterone production. Here is how to tell when correcting vitamin D is a meaningful lever. It also explains when low ...

L carnitine benefits for men: What it can and cannot do for fat loss, workouts, and testosterone signaling

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

Oct 25, 2025 · 16 min read

L-carnitine can modestly improve endurance style training output and may support sperm motility in selected men, but it is not a guaranteed fat loss or testosterone shortcut. This evidence-based guide breaks down which l carnitine benefits are real, what dose and timeline matter, and how to use it like a structured experiment instead of a ...

Sauna health benefits for men: A safe routine for heart health and recovery

Dr. Bruno Rodriguez, DPT, CSCS: Strength, Recovery, and Physical Therapy Expert

Oct 21, 2025 · 15 min read

Regular sauna use is associated with meaningful sauna health benefits in men, especially for cardiovascular health and blood pressure, when sessions are frequent enough to raise core temperature and are done safely.[2] The upside is real, but the best data are mostly observational, so the win comes from a repeatable routine, not extreme heat or ...