YYouLiveLong
YouLiveLong guide

Longevity factors: what the evidence can and cannot say

Explore how smoking, activity, sleep, weight, blood pressure, diabetes, diet, alcohol, connection, and health relate to mortality.

Risk factors travel together. That is why we model their combined relationship conservatively and never promise “years gained.”

Quantitative in V1

Smoking, physical activity, sleep, BMI category, blood-pressure status, diabetes, heavy alcohol use, diet pattern, social isolation, and self-rated health alter the modeled mortality hazard.

Qualitative in V1

Preventive-care status and family longevity appear in the personal explanation but do not move the number. Their effects are too context-dependent for a defensible simple coefficient.

Association is not a prescription

Relative risks in observational studies can reflect confounding, measurement error, reverse causation, and differences between populations. Talk with a qualified clinician before changing treatment, medication, alcohol use, diet, or exercise.