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

Creatine weight gain: What’s normal, what’s not, and how to stay in control

Creatine weight gain: What’s normal, what’s not, and how to stay in control

Dr. Bruno Rodriguez, DPT, CSCS avatar
Dr. Bruno Rodriguez, DPT, CSCS: Strength, Recovery, and Physical Therapy Expert
Dec 11, 2025 · 11 min read

Creatine commonly increases scale weight by about 2 to 4.5 lb in the first week, mostly from an increase in total body water as creatine stores rise (especially with a loading phase). Learn how to tell normal water shifts from true fat gain and how to track performance and body composition so weigh-ins don’t catch ...

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 to lower hematocrit on trt safely and effectively

How to lower hematocrit on trt safely and effectively

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

The safest way to lower hematocrit on TRT is to reduce testosterone peaks by lowering the dose and/or switching from infrequent injections to more frequent micro-dosing or a steadier transdermal method, because testosterone increases red blood cell production through kidney-driven erythropoietin (EPO) signaling. Since elevated hematocrit affects roughly 5% to 66% of men on therapy, ...

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 ...

How to measure testosterone accurately: The blood tests that actually matter

How to measure testosterone accurately: The blood tests that actually matter

Dr. Alexander Grant, MD, PhD avatar
Dr. Alexander Grant, MD, PhD: Urologist & Men's Health Advocate
Dec 10, 2025 · 14 min read

You measure testosterone most accurately with a morning blood test that reports total testosterone and free testosterone, ideally processed by a CLIA certified laboratory. The details matter, because timing, test type, and follow up labs can be the difference between useful data and a false alarm. “If you want to know how to measure testosterone ...

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