If they can learn more about how the human body ages,why some people live longer than others then perhaps they could apply these different facts in order to eventually discover our lifespan.
Bowel incontinence is an inability to control bowel movements, resulting in involuntary soiling. It's also sometimes known as faecal incontinence. The experience of bowel incontinence can vary from person to person. Some people feel a sudden need to go to the toilet but are unable to reach a toilet in time.
Instructions for the safe use & potential hazards associated w/ a particular material or product
Physical health and social health would complete the triangle.
The male reproductive system is to ferment the female egg and the female reproductive system is to be the reciever and get fermented and hold the baby.