Discuss the possible causes of infertility and what types of treatments are available for couples ...

Answer to q. 1

For possible causes, answers could include age, low sperm count, smoking, alcohol
use, environmental toxins, obesity, PID, and so on. Possible treatments for infertility
can include surgery to repair the male or female reproductive system, ART, and
adoption.

Answer to q. 2

25; 65

Answer to q. 3

Men tend to age more quickly and die earlier than women do. Males in general tend
to die at a higher rate than do females. Typically, women live five years longer than
do men. A woman's second X chromosome or extra estrogen may provide
protection from some illnesses; also women tend to spend more time on their health
and practice more good health habits. Men tend to delay seeking medical attention,
eat more meat, drink more, smoke more, and wear seat belts less often than do
women.