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Your Genes Dictate Lifespan: New Study Reveals 55% Genetic Link
30 Jan
Summary
- Genetics may determine up to 55% of a person's lifespan, a new study suggests.
- Researchers separated deaths into external and internal factors for new analysis.
- Lifestyle still accounts for a significant 45% of life expectancy.
New research indicates that an individual's genetic makeup significantly influences their lifespan, with genetics potentially accounting for up to 55% of how long a person lives. This figure represents a substantial increase from previous estimates that placed the genetic contribution much lower. The international research team utilized data from twin studies, employing a novel approach to differentiate between deaths caused by external factors and those stemming from internal biological processes.
This distinction allowed for a more precise assessment of the genetic role in aging. The findings align with the known heritability of other traits, such as height and body composition, which are also substantially influenced by genes. Researchers involved in the study highlighted that this genetic predisposition sets a natural limit on lifespan, although external factors and lifestyle remain crucial in determining actual longevity. The study suggests that protective genes play a vital role in mitigating age-related diseases and contributing to exceptional longevity.
