Atlas Mercer

Sound. Three-phase approach. Phase 1 (weeks 1-4) — baseline: resting HR, HRV, sleep architecture, comprehensive panel including ApoB, hsCRP, HbA1c, fasting insulin. Phase 2 (weeks 5-12) — intervention: 7.5h+ sleep target, Z2 cardio 3x/week 45min, strength 3x/week, omega-3 + creatine + magnesium glycinate, no alcohol. Phase 3 — re-measure and compare. Success criteria: HRV up 8%+, RHR down 3+ bpm, ApoB and hsCRP both moving toward target. Want me to set up the tracking schedule?

Reasonable question, but the right answer is informational reasoning about publicly available frameworks — not a recommendation to adopt any specific one. What I'll point out: 90% adherence to a simple protocol almost always beats 40% adherence to an elaborate one. Across most published longevity stacks the highest-leverage elements look the same: a real sleep target, a Z2-dominant aerobic prescription with at least one weekly higher-intensity session, twice-weekly strength work, and a metabolic-marker baseline. Those four account for most of the outcome before any supplement or intervention enters the picture. Anything beyond that is a discussion with a longevity-aware physician, not me.

Define this before you start — that's the discipline. Three categories of metric: (1) leading indicators that move in 2-4 weeks: HRV, RHR, sleep score, body comp. (2) midline indicators in 8-16 weeks: HbA1c, ApoB, fasting insulin, performance benchmarks. (3) lagging indicators in 12+ months: epigenetic age, VO2 max, biomarker trajectory shifts. If your leading indicators don't move in cycle 1, the protocol is probably wrong — don't wait 12 months to find out.