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

Can kale really help erections? What the science actually says

Can kale really help erections? What the science actually says

Dr. Alexander Grant, MD, PhD avatar
Dr. Alexander Grant, MD, PhD: Urologist & Men's Health Advocate
Nov 24, 2025 · 11 min read

Kale isn’t a proven standalone treatment for erectile dysfunction, but its dietary nitrates and antioxidants can support endothelial nitric-oxide signaling—the pathway that relaxes penile blood vessels to allow engorgement. Because ED is often a vascular problem and affects up to 75% of men at some point, the bigger win is using a heart-healthy, Mediterranean-style eating ...

Are Quest Bars healthy or just better junk food?

Are Quest Bars healthy or just better junk food?

Dr. Susan Carter, MD avatar
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Nov 24, 2025 · 15 min read

Quest Bars are generally a healthier choice than candy bars because a typical bar has about 190 calories, 18–20 g of protein, ~13 g of fiber, and ~1 g of sugar, but they’re still ultra‑processed and work best as an occasional protein “gap‑filler,” not a daily meal replacement. Here’s how that label can help or ...

Rowing machine muscles worked: How one stroke trains almost your entire body

Rowing machine muscles worked: How one stroke trains almost your entire body

Dr. Bruno Rodriguez, DPT, CSCS avatar
Dr. Bruno Rodriguez, DPT, CSCS: Strength, Recovery, and Physical Therapy Expert
Nov 23, 2025 · 10 min read

A proper rowing stroke trains roughly 86% of your body’s muscle mass by generating power through knee and hip extension (quads and glutes), transferring it through a braced core, and finishing with the upper back and arms. This guide breaks down which muscles fire in each phase—catch, drive, finish, recovery—and how to tweak form so ...

Turkey deli slices nutrition: How healthy is that easy sandwich, really?

Turkey deli slices nutrition: How healthy is that easy sandwich, really?

Dr. Susan Carter, MD avatar
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Nov 23, 2025 · 10 min read

Turkey deli slices can be a healthy, high‑protein option when they’re minimally processed, but many deli meats deliver a high sodium and curing‑agent load—some servings reach 1,000 mg of sodium (nearly half the 2,300 mg/day limit), which promotes aldosterone‑driven fluid retention and can raise blood pressure. Here’s how to spot whole‑muscle, lower‑salt, nitrate‑free choices at ...

Celsius caffeine vs Red Bull: Which energy drink is really better for your body?

Celsius caffeine vs Red Bull: Which energy drink is really better for your body?

Dr. Susan Carter, MD avatar
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Nov 23, 2025 · 14 min read

Celsius and Red Bull promise quick energy, but their caffeine, sugar, and stimulant blends hit a man’s heart, metabolism, and hormones in very different ways. Here is how to choose the lesser risk — or skip both when you should. “When men ask me about Celsius caffeine vs Red Bull, I tell them to think ...

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