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

Glutathione foods: Can you really eat your way to better antioxidant defense?

Glutathione foods: Can you really eat your way to better antioxidant defense?

Dr. Susan Carter, MD avatar
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Nov 26, 2025 · 14 min read

Not reliably. Most glutathione in food is broken down during digestion, so diet helps more by providing the amino acids and cofactors your body uses to make glutathione. Here is how glutathione actually works, which foods matter most, and how to build a smarter plan for immunity, energy, and healthy aging. “Glutathione is less like ...

Neutral grip pulldown: How to build your back while protecting your shoulders

Neutral grip pulldown: How to build your back while protecting your shoulders

Dr. Bruno Rodriguez, DPT, CSCS avatar
Dr. Bruno Rodriguez, DPT, CSCS: Strength, Recovery, and Physical Therapy Expert
Nov 26, 2025 · 10 min read

A neutral-grip pulldown can build back width with lat activation similar to a wide, palms-forward pulldown for many lifters and often feels more comfortable on the shoulders. For decades, the wide-grip pulldown has been the default for chasing a “V-taper.” Here’s how turning your hands to face each other can change elbow path and shoulder ...

Medicine 3.0 for men: How to make prevention your default

Medicine 3.0 for men: How to make prevention your default

Dr. Susan Carter, MD avatar
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Nov 25, 2025 · 16 min read

To make prevention your default, Medicine 3.0 focuses on earlier risk testing, tracking trends over time, and making targeted lifestyle and medical changes before disease develops. It shifts the goal from being “normal” on paper to being optimal in real life so you can protect performance now and extend healthspan later. “Medicine 3.0 is the ...

What does healthy sperm look like? A normal sperm color chart and 8 signs of healthy sperm

What does healthy sperm look like? A normal sperm color chart and 8 signs of healthy sperm

Dr. Alexander Grant, MD, PhD avatar
Dr. Alexander Grant, MD, PhD: Urologist & Men's Health Advocate
Nov 25, 2025 · 16 min read

Healthy sperm usually cannot be confirmed by looks alone, but normal semen is typically clear, gray, or white and a semen analysis is the only reliable way to measure sperm count, movement, and shape. This guide breaks down the 8 signs of healthy sperm you can watch for at home, plus a normal sperm color ...

Hydrogen water bottle benefits: Hype, risks, and what the science actually says

Hydrogen water bottle benefits: Hype, risks, and what the science actually says

Dr. Bruno Rodriguez, DPT, CSCS avatar
Dr. Bruno Rodriguez, DPT, CSCS: Strength, Recovery, and Physical Therapy Expert
Nov 24, 2025 · 16 min read

Hydrogen water bottles dissolve extra molecular hydrogen (H₂) into water, and early small human studies suggest modest reductions in oxidative-stress markers and post-exercise fatigue via a “selective antioxidant” effect. These results are not the dramatic recovery, focus, or anti-aging outcomes often marketed. Here’s how these devices generate H₂, what the research and real-world risks show, ...

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