Summary
Research shows that women tend to live longer than men globally, with women living approximately 5.4 years longer on average. Despite living longer, women often experience more health issues as they age. The reasons for women's longer lifespan may include biological and behavioral factors.
Key Facts
- Women live about 5.4 years longer than men on average worldwide.
- In the U.S., women have an average lifespan of 80 years, while men live to about 75 years.
- The longer lifespan of women is observed across different countries and cultures.
- One theory is that women have two X chromosomes, reducing the impact of genetic mutations compared to men who have one X chromosome.
- Longer telomeres in women may contribute to their longer lives; telomeres are parts of DNA at the end of chromosomes.
- Sexual selection may lead to males having traits that boost reproduction chances but shorten their lives.
- Estrogen hormones in women are believed to protect the heart and contribute to longevity.
