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All the latest articles from our medical experts on testosterone, men's health, and longevity.

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

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

Dr. Alexander Grant, MD, PhD avatar
Dr. Alexander Grant, MD, PhD: Urologist & Men's Health Advocate
Jan 12, 2026 · 9 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 creatine increase testosterone? The science on muscle fuel and male hormones

Does creatine increase testosterone? The science on muscle fuel and male hormones

Dr. Alexander Grant, MD, PhD avatar
Dr. Alexander Grant, MD, PhD: Urologist & Men's Health Advocate
Jan 11, 2026 · 10 min read

Creatine monohydrate does not significantly increase total or free testosterone in healthy men in controlled studies, because it works by boosting cellular energy (ATP recycling) rather than directly stimulating the endocrine system. It may still help you train harder and see temporary workout-related hormone spikes—and a single 2009 rugby study reporting higher DHT (a potent ...

Should I lose weight before building muscle? A men’s guide to getting leaner without losing strength

Should I lose weight before building muscle? A men’s guide to getting leaner without losing strength

Dr. Susan Carter, MD avatar
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Jan 11, 2026 · 12 min read

Most men don’t need to “lose weight first” — a moderate calorie deficit paired with progressive resistance training and high protein can reduce body fat while preserving, and sometimes adding, lean mass by maintaining muscle protein synthesis. The key is getting leaner without the metabolic slowdown and strength loss that often come with aggressive cutting, ...

The science of caffeine free energy drinks: How to boost focus without the crash

The science of caffeine free energy drinks: How to boost focus without the crash

Dr. Jonathan Pierce, PhD avatar
Dr. Jonathan Pierce, PhD: Clinical Psychologist & Neuroscience Specialist
Jan 10, 2026 · 11 min read

Caffeine-free energy drinks can boost focus without a “crash” by supporting real cellular energy—ATP production in the mitochondria (Krebs cycle) and oxygen/nutrient delivery—rather than blocking brain adenosine receptors, which masks fatigue while adenosine continues to accumulate. Here’s how ingredients like B-vitamins, amino acids, and electrolytes aim to power performance without triggering the cortisol-and-adrenaline stress spike. ...

Ultrahuman ring vs Oura: Which smart ring is worth it for men’s sleep and recovery?

Ultrahuman ring vs Oura: Which smart ring is worth it for men’s sleep and recovery?

Dr. Bruno Rodriguez, DPT, CSCS avatar
Dr. Bruno Rodriguez, DPT, CSCS: Strength, Recovery, and Physical Therapy Expert
Jan 09, 2026 · 11 min read

Smart rings promise better sleep, better training, and better energy. Here is what “ultrahuman ring vs oura” really means for men, what the data can and cannot tell you, and how to use either ring like a clinician would. “A smart ring can’t diagnose you, but it can help you spot patterns that matter: short ...

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