Castration in animals can lead to a longer lifespan. Researchers analyzed data from 117 species of mammals and found that sterilization increased life expectancy by almost 18%. The study showed that castration, particularly in males, improved life expectancy due to the reduction of sex hormones, which interact with pathways that regulate aging. In contrast, females who were treated with hormonal contraceptives had longer lifespans due to reduced energetic costs associated with pregnancy and caring for offspring.
However, permanent removal of ovaries in females can lead to frailty and poor health. The study’s findings support the idea that “the evolutionary benefits of menopause” contribute to improved longevity. While the results are promising, it’s essential to consider individual differences and the impact of sterilization on overall health.
Source: https://nautil.us/is-the-secret-to-long-life-freedom-from-procreation-1254290