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

How much does the bar weight bench press: A complete guide to lifting standards

How much does the bar weight bench press: A complete guide to lifting standards

Dr. Bruno Rodriguez, DPT, CSCS avatar
Dr. Bruno Rodriguez, DPT, CSCS: Strength, Recovery, and Physical Therapy Expert
Nov 30, 2025 · 14 min read

A standard Olympic barbell used for the bench press weighs 45 lb (20 kg) before you add any plates. From there, your “real” bench number is the total loaded weight, and a common general-fitness target is about a 1:1 bench-to-bodyweight ratio with strict form. “Instead of chasing someone else’s bench press, use your bodyweight, age, ...

Novak Djokovic proactive care performance: The science of defying age

Novak Djokovic proactive care performance: The science of defying age

Dr. Bruno Rodriguez, DPT, CSCS avatar
Dr. Bruno Rodriguez, DPT, CSCS: Strength, Recovery, and Physical Therapy Expert
Nov 30, 2025 · 15 min read

Elite performance in your late 30s is achievable when you proactively manage the predictable physiology of aging—countering testosterone’s ~1–2% yearly decline after 30, VO₂ max’s ~10% per-decade drop, and up to ~8% per-decade muscle loss with consistent training, strength work, and recovery before injuries force a reset. Djokovic is a high-profile example of this “prevent ...

Can i drink coffee while fasting? The metabolic rules you need to know

Can i drink coffee while fasting? The metabolic rules you need to know

Dr. Susan Carter, MD avatar
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Nov 30, 2025 · 9 min read

Black coffee generally keeps a metabolic fast intact because it has about 2–5 calories per cup and does not trigger a significant insulin response, so fat burning can continue. The nuance is caffeine’s effect on cortisol and your goal (weight loss vs. strict “autophagy” rules), which can change what “allowed” really means. “From a hormonal ...

How long does it take for testosterone to work? A clinical timeline for results

How long does it take for testosterone to work? A clinical timeline for results

Dr. Alexander Grant, MD, PhD avatar
Dr. Alexander Grant, MD, PhD: Urologist & Men's Health Advocate
Nov 29, 2025 · 13 min read

In clinical trials of TRT for hypogonadism, libido, energy, and mood often improve within about 3–6 weeks, while erection quality and muscle/fat changes typically take 12–16 weeks and bone benefits start around 6 months. Because different tissues respond on different timelines, this guide shows what to expect month by month — and how regular 3‑month ...

Does diet coke break a fast? What the science actually says

Does diet coke break a fast? What the science actually says

Dr. Susan Carter, MD avatar
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Nov 29, 2025 · 14 min read

Diet Coke typically does not break a strict, calorie‑based fast because it contains about 0–5 calories per serving. But its non‑nutritive sweeteners can still activate sweet‑taste receptors and the gut–brain axis, potentially nudging insulin, gut hormones, and hunger—and quietly dulling some fasting benefits in certain people. “From a pure calorie standpoint, diet soda does not ...

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