Physical development in adulthood.

People reach physical maturity at about 19, as they reach early adulthood. During middle adulthood, they begin the ageing process.

Life Stage: Physical characteristics:

Early adulthood: Reach full height and strength.
Physically maturity.
Have developed sexual characteristics and are able to reproduce.
Woman are at their most fertile.

Middle adulthood: Begin to show signs of ageing, such as greying hair.
Begin to lose muscle tone and strength.
Body…