Flexi Says:
Strength and physical performance typically reach their peak between 20 and 35 years of age. Both males and females reach their peak fertility in the 20s, and for females, fertility starts declining in the 30s. Health problems in young adults tend to be relatively minor. Cancer is rare in this stage of adulthood, but there are a few exceptions, notably testicular cancer, cervical cancer, and Hodgkin’s lymphoma. The most common causes of death in young adulthood are homicides, car crashes, and suicides.
See Also
A Wrinkle In Time