The issue of differences in human lifespan has long been of interest to the scientific world. Now, Japanese researchers have come to the conclusion that longevity is linked to the largest human cells, the female egg cells, and the smallest, the male sperm cells (the difference in size is about 175,000 times, by the way).
It has been shown for the first time in vertebrates that the development of eggs in women and sperm in men is the cause of age differences. file. Japanese researchers conducted experiments on small, turquoise-colored killer fish, which quickly reach sexual maturity and are ideal subjects for studying aging due to their short life cycle.
“The aging process of killer fish is similar to that of humans,” said lead author of the study Professor Tohru Ishitani from Osaka University, adding that they believe this research will serve as a starting point for understanding how humans age.
the results according to
Removing sperm extends the lifespan of males, while removing eggs shortens the lifespan of females.
Published in the Scientific Progress magazine Stady Describes how this change also affected the hormonal level.
- In the case of females, lower estrogen levels increased the risk of cardiovascular disease.
- In contrast, males produced more vitamin D in their livers, which led to improved bone, muscle and skin health.
The research team also investigated how vitamin D intake affects lifespan. An increase of 21 percent was recorded for males, while an increase of 7 percent was recorded for females.
