Body & Health
Health, Longevity & How the Body Works
Live longer, feel better, what's actually solid
Novice
Body & Health
Live longer, feel better, what's actually solid
Novice
Subdomain
The eating patterns that predict long-term health: mostly plants, enough protein, minimally processed. Specific diets matter less than the overall pattern.
VO₂max
Max rate of oxygen use, a key measure of cardio fitness.
Sarcopenia
Age-related loss of muscle mass and strength.
Healthspan
Years lived in good health, not just total years alive.
Ultra-processed food
Food heavily transformed with industrial ingredients (Nova classification).
Chronic stress
Persistent activation of the stress response, damages multiple systems.
Relative risk
Risk in one group vs another, sounds bigger than absolute risk.
Absolute risk
Actual probability of an event in a population.
Meta-analysis
Statistical combination of many studies, usually more reliable than any one.
HRV
Heart rate variability, beat to beat variation, a proxy for recovery and stress.
NEAT
Non exercise activity thermogenesis, calories burned through daily movement outside workouts.
Zone 2
Steady aerobic effort where you can still talk, builds mitochondrial fitness.