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Genes Hold Key to Longer Life, Study Reveals
30 Jan
Summary
- Genetics may determine up to 55% of human lifespan.
- New research challenges previous estimates on genetic influence.
- Healthy life expectancy in England is around 61.5-61.9 years.
New research indicates that genetics may be the primary determinant of human lifespan, potentially influencing up to 55% of how long individuals live. This finding, emerging from the University of Copenhagen, significantly revises previous scientific understanding, which typically placed genetic influence at a much lower percentage.
The study utilized twin studies to more accurately assess genetic contributions, particularly when external factors like accidents and infectious diseases were minimized. Such insights carry profound implications for understanding the aging process and the potential scope for lifestyle interventions.
Historically, average life expectancy has risen over centuries. Recent data from England estimates healthy life expectancy at birth to be approximately 61.5 years for males and 61.9 years for females for the 2021-2023 period.
Experts suggest these findings bolster the case for investigating specific genetic variants and pathways linked to longevity. The observed heritability aligns with that of other complex human traits, suggesting aging rates might be evolutionarily optimized.
