Part Three · Lifestyle & Environment
The exposures that surround you.
Body composition, physical activity, sleep, stress, infections, oral health, sun, indoor air and occupational chemicals account for a major share of preventable disease. The evidence below is drawn from IARC monographs, WHO guidelines, NIH reviews and large cohort studies.
Environmental & physical exposures
The air you breathe, the radiation you receive, the materials you live among. Most of these you can measure, mitigate or avoid.
Lifestyle exposures
Body weight, movement, sleep, stress, infections and oral health — the highest-leverage personal levers we know of.
Occupational & chemical exposures
Hazards encountered at work or through specific products and applications. Many are regulated; vigilance and protective equipment matter most.