The foundation of everything
Sleep is the single most powerful longevity intervention available. A 2025 study from Oregon Health & Science University found that sufficient sleep predicts lifespan more strongly than diet, exercise, or almost any other factor except smoking. The HTS Sleep Protocol optimizes every dimension — duration, consistency, depth, and environment.
Sleep is when your body does its most critical repair work — clearing metabolic waste from the brain, regulating hormones, consolidating memory, repairing cellular damage, and resetting the immune system. Research published in 2025 confirms that optimal sleep of 7.2–8.0 hours daily, combined with good nutrition and movement, is associated with up to 9.35 additional years of lifespan and 9.45 additional years of healthspan. Midlife slow-wave (deep) sleep quality has also been linked to Alzheimer's risk decades later — making sleep optimization a form of brain insurance.
Sleep regularity — going to bed and waking at consistent times — is as important as sleep duration. Irregular sleep timing is independently associated with insulin resistance, hypertension, depression, and cardiovascular events. The HTS protocol establishes a fixed sleep-wake schedule and uses morning light exposure to anchor the circadian clock.
Deep sleep (slow-wave sleep) is where the brain's glymphatic system clears metabolic waste, including the amyloid proteins associated with Alzheimer's. The target is 20–25% of total sleep in deep sleep and 20–25% in REM. Temperature is the most powerful lever — the body needs to drop core temperature by 1–3°F to initiate and maintain deep sleep.
The sleep environment is the most controllable variable. Light, temperature, noise, and air quality all directly affect sleep architecture. The HTS protocol treats the bedroom as a precision environment, not an afterthought.
Targeted supplementation addresses common deficiencies that impair sleep quality. These are the most evidence-backed compounds for sleep optimization — not sedatives, but biological support for the body's natural sleep processes.
Get outside within 30 minutes of waking. 5–10 minutes of natural light exposure anchors your circadian rhythm and sets the sleep pressure clock for that night.
Last caffeine by 12–1pm. Caffeine has a 5–7 hour half-life — a 2pm coffee still has half its caffeine in your system at 7pm, directly reducing deep sleep.
Dim lights 1–2 hours before bed. Use blue light blocking glasses or enable night mode on all screens. Lower the thermostat to 65–68°F.
Take magnesium glycinate (300–400mg), glycine (3g), apigenin (50mg), and optionally L-theanine (100–200mg). These compounds work synergistically to improve sleep onset and deep sleep.
Non-negotiable. Sleep regularity is as important as sleep duration. Irregular timing disrupts metabolic regulation, increases cardiovascular risk, and impairs cognitive function.
What gets measured gets optimized. Track these metrics weekly:
Metabolic switching, autophagy, and the correct way to fast for healthspan and lifespan.
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