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Centenarians Defy Rules: What's Their Secret?
10 Mar
Summary
- Longevity is roughly 50% genetic and 50% environmental.
- Some long-lived individuals smoke or drink alcohol.
- Healthy habits significantly boost chances for a longer life.

Recent research indicates that approximately 50% of longevity can be attributed to genetics, a finding that has surprised many scientists. This genetic influence is significantly higher than previously understood.
Paradoxically, some individuals who live to be 100 or older maintain habits such as smoking, drinking hard liquor, or consuming sugary beverages daily. This challenges conventional wisdom regarding healthy aging.
Despite the strong genetic component, lifestyle choices remain crucial. For the majority of people, adopting a healthy diet, engaging in regular physical activity, and ensuring sufficient sleep can substantially increase the likelihood of living a longer and healthier life.
A small subset of the population possesses rare genetic combinations that naturally slow the aging process. These genetic advantages offer protection against common age-related diseases like heart disease, Alzheimer's, and cancer, even without strict adherence to medical advice.




