Circadian rhythm

Explore how your body's internal clock influences hormone production, sleep quality, and recovery. Understanding circadian rhythm is key to optimizing testosterone levels, training performance, and overall men's health.

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The essentials for circadian rhythm — then explore the latest posts below.

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 ...

Can Veedma improve longevity without expensive biohacks? The free habits that matter most for men

Can Veedma improve longevity without expensive biohacks? The free habits that matter most for men

Dr. Susan Carter, MD avatar
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Dec 02, 2025 · 14 min read

Yes, a Veedma-style longevity plan can meaningfully improve healthspan using consistent, no-cost habits like walking, sleep, morning light, stress control, social connection, and simple meal timing. The science is not mysterious. The win comes from repeating the basics often enough that your metabolism and nervous system stop living in “emergency mode.” “Most men do not ...

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