Body composition

Explore strategies for optimizing your ratio of muscle to body fat, including training approaches, nutrition tactics, and hormonal factors that influence how your body stores fat and builds lean mass.

What happens if we release sperm daily? What science says about testosterone, muscle, and men’s health

What happens if we release sperm daily? What science says about testosterone, muscle, and men’s health

Dr. Alexander Grant, MD, PhD avatar
Dr. Alexander Grant, MD, PhD: Urologist & Men's Health Advocate
Dec 11, 2025 · 14 min read

For most healthy men, ejaculating daily is safe and does not meaningfully lower long-term testosterone or impair muscle gains. Frequent ejaculation is unlikely to wreck long-term health, but there are a few important exceptions you should know about. “For the average healthy man, ejaculating every day is more of a lifestyle choice than a medical ...

How body fat speeds up aging in men: The science of metabolism and longevity

How body fat speeds up aging in men: The science of metabolism and longevity

Dr. Susan Carter, MD avatar
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Dec 10, 2025 · 15 min read

In men, excess visceral (deep belly) fat speeds up aging by acting as an inflammatory endocrine organ that releases cytokines such as TNF-α and IL-6, driving chronic inflammation, insulin resistance, and faster atherosclerosis. Losing just 5 to 10% of body weight in midlife can measurably improve blood sugar, blood pressure, and inflammatory markers. This makes ...

Ranking the healthiest cut of steak for building muscle and managing weight

Ranking the healthiest cut of steak for building muscle and managing weight

Dr. Bruno Rodriguez, DPT, CSCS avatar
Dr. Bruno Rodriguez, DPT, CSCS: Strength, Recovery, and Physical Therapy Expert
Dec 10, 2025 · 12 min read

For building muscle while managing weight, eye of round is one of the leanest steak cuts, helping keep calories and saturated fat relatively low while prioritizing protein. Here’s how to rank the leanest cuts so you still get leucine-driven muscle protein synthesis without the excess saturated fat that can push LDL higher.[5] “Steak is often ...

Does testosterone increase metabolism in men?

Does testosterone increase metabolism in men?

Dr. Susan Carter, MD avatar
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Dec 09, 2025 · 13 min read

In men with confirmed testosterone deficiency, testosterone replacement can modestly increase metabolic rate over 6 to 12 months, largely by adding lean muscle (which raises basal metabolic rate) and reducing visceral fat. The biggest payoff shows up when strength training, protein intake, and sleep are dialed in, and men with normal levels usually see little ...

What is sex hormone binding globulin? How SHBG levels shape testosterone in men

What is sex hormone binding globulin? How SHBG levels shape testosterone in men

Dr. Alexander Grant, MD, PhD avatar
Dr. Alexander Grant, MD, PhD: Urologist & Men's Health Advocate
Dec 09, 2025 · 14 min read

Sex hormone binding globulin is a liver made protein that binds testosterone and other sex hormones, and SHBG levels help predict how much testosterone is actually available to your tissues. If you have low testosterone symptoms but “normal” total testosterone, SHBG is often the missing piece that explains why you still feel off. “Most guys ...

Special OfferLab panels included: $300/year free for all members