Fitness & physical performance | Veedma's evidence-based men's health articles

The mitochondrial theory of aging: Why your cells lose power and how to fix it

Dr. Susan Carter, MD: Endocrinologist & Longevity Expert

Jan 13, 2026 · 12 min read

Between ages 30 and 70, mitochondrial function in skeletal muscle can drop by 25 to 30%, lowering ATP production and slowing repair, fat metabolism, and hormone output. Many researchers consider these changes a core driver of aging. The good news is that mitochondria can respond to the right signals, and this guide shows how to ...

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

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

Jan 11, 2026 · 11 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. A single 2009 rugby study reporting higher DHT (a potent ...

Should i lose weight before building muscle? A doctor’s guide for men who want results

Dr. Susan Carter, MD: Endocrinologist & Longevity Expert

Jan 11, 2026 · 13 min read

It depends on your goal and how much weight you need to lose, but most men do best by prioritizing fat loss while protecting or building muscle. If you have obesity, weight loss usually comes first for health and longevity, then you push harder on muscle gain once training feels better and safer. “The biggest ...

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

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

Jan 10, 2026 · 12 min read

Non-caffeinated energy boosters, including caffeine-free energy drinks, may help support focus without a “crash,” largely by addressing fundamentals that influence energy and performance, such as hydration, electrolyte balance, and nutrient cofactors involved in energy metabolism. A “crash” is the rebound in sleepiness, brain fog, and low drive you feel when a stimulant wears off while ...

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

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

Jan 09, 2026 · 12 min read

Neither Ultrahuman Ring Air nor Oura is a clear clinical winner for men’s sleep and recovery; the best choice is the ring you will wear nightly and use to change habits. Oura is typically cheaper upfront, Ultrahuman often costs more upfront, and both are trend trackers—not diagnostic tools. “A smart ring can’t diagnose you, but ...