Articles
Stress, Cortisol and Aging: How Chronic Stress Ages You at the Cellular Level
A landmark study by Nobel Prize winner Elizabeth Blackburn found that mothers of chronically ill children had telomeres 10 years shorter than those of mothers with healthy children — the cellular cost of chronic psychological stress made visible. This guide covers the cortisol-aging pathway, what happens to your cells under chronic stress, and the evidence-based interventions that reverse the damage.
Sleep and Aging: Why Poor Sleep Accelerates Every Hallmark of Biological Aging
A study of 500,000 UK Biobank participants found sleeping fewer than 6 hours per night was associated with a 30% higher risk of all-cause mortality. But mortality risk is the endpoint of a much earlier process: poor sleep directly accelerates DNA damage, telomere shortening, amyloid accumulation, and chronic inflammation — four of the nine hallmarks of aging. This guide explains the mechanisms and what the evidence shows.
Exercise and Longevity: What the Science Says About How Much and What Type
A meta-analysis of 95 studies and over 1.4 million adults found that 150 minutes of moderate exercise per week reduced all-cause mortality by 31%. But the type of exercise matters as much as the amount — strength training, zone 2 cardio, and high-intensity intervals each address different mechanisms of biological aging. This guide covers exactly what the evidence shows about exercise and longevity.
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