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

Sauna before or after your workout? A science-based timing guide for men

Sauna before or after your workout? A science-based timing guide for men

Dr. Bruno Rodriguez, DPT, CSCS avatar
Dr. Bruno Rodriguez, DPT, CSCS: Strength, Recovery, and Physical Therapy Expert
Dec 22, 2025 · 13 min read

Sauna is generally best after your workout for performance and recovery. For most men, pre-workout heat stress increases core temperature and heart rate (via vasodilation), which can sap energy and reduce peak performance. Here’s how to time sauna for recovery and cardiovascular benefits. This includes when a short pre-session makes sense, and how long to ...

How much deep sleep should you get? A men’s guide to stage 3 sleep and recovery

How much deep sleep should you get? A men’s guide to stage 3 sleep and recovery

Dr. Jonathan Pierce, PhD avatar
Dr. Jonathan Pierce, PhD: Clinical Psychologist & Neuroscience Specialist
Dec 21, 2025 · 10 min read

Most adult men spend about 10 to 25 percent of their total sleep time in deep sleep, which is roughly 45 to 120 minutes in an eight hour night. If you feel tired, foggy, or low drive despite “enough” hours, the missing piece is often sleep quality, including how much deep sleep you need and ...

Does testosterone make your dick bigger? What the science says about size, erections, and TRT

Does testosterone make your dick bigger? What the science says about size, erections, and TRT

Dr. Alexander Grant, MD, PhD avatar
Dr. Alexander Grant, MD, PhD: Urologist & Men's Health Advocate
Dec 21, 2025 · 11 min read

Testosterone does not make your penis bigger after puberty. But if low testosterone is weakening your erections, restoring healthy levels can make your penis look and function bigger in the moment because erection quality improves. “If you are asking ‘does testosterone make your penis bigger,’ the honest medical answer is no for adult men. Testosterone ...

How long does creatine take to work? A realistic timeline for men

How long does creatine take to work? A realistic timeline for men

Dr. Bruno Rodriguez, DPT, CSCS avatar
Dr. Bruno Rodriguez, DPT, CSCS: Strength, Recovery, and Physical Therapy Expert
Dec 20, 2025 · 12 min read

Creatine typically takes about 1 to 4 weeks to produce noticeable training benefits, depending on dosing and training style. Faster changes are possible if you use a short loading phase. Creatine has to build up inside muscle before it meaningfully boosts repeated high intensity efforts. “Creatine is not a pre workout jolt. Think of it ...

What is ego lifting? The gym habit that can wreck your joints and your gains

What is ego lifting? The gym habit that can wreck your joints and your gains

Dr. Bruno Rodriguez, DPT, CSCS avatar
Dr. Bruno Rodriguez, DPT, CSCS: Strength, Recovery, and Physical Therapy Expert
Dec 19, 2025 · 13 min read

Ego lifting is using a weight that exceeds your current capacity for that exercise on that day, forcing you to cheat form or shorten range of motion to complete reps. It may feel like progress, but it shifts stress off the target muscle and onto joints and passive tissues. This can set you up for ...

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