Five pillars of healthspan
The repeatable foundations of healthy ageing — from Buettner's Blue Zones, Attia's Outlive, Walker's Why We Sleep, and the converging research literature.
Pillar · sleep
Sleep and longevity
Consolidated, deep sleep is the substrate of cellular repair, hormonal regulation, and memory consolidation. Most credible longevity protocols start here.
Pillar · movement
Movement and longevity
Cardiorespiratory fitness is one of the most-replicated predictors of mortality risk. Resistance training is the only reliable defence against sarcopenia. Daily walking captures most of the rest. Three layers, in order.
Pillar · nutrition
Nutrition and longevity
Mediterranean and Blue Zones patterns converge on the same picture — plants first, fish present, modest restriction, sufficient protein. The strongest dietary evidence base for healthspan rewards consistency over fashion.
Pillar · stress
Stress and longevity
Chronic sympathetic activation accelerates the body's wear pattern. Vagal tone, breathwork, and sustained stress practices are unromantic, free, and among the highest-leverage longevity interventions.
Pillar · connection
Connection and longevity
Strong social connection predicts mortality risk in cohort data with effect sizes comparable to smoking cessation. The most-skipped longevity practice and one of the most consequential.