Answer:
1. hypogonadism
2. testosterone
Explanation:
Hypogonadism is associated with different health problems (i.e., infertility, impotence, osteoporosis, etc), thereby significantly affecting the quality of life.
Male hypogonadism is a condition where the normal functioning of the testicles is disturbed. According to the doctor's prescription, it is likely that Daniel is producing less testosterone than normal. In general, male hypogonadism is associated with less production of testosterone sex hormones.
Testosterone is the most important male sex hormone. This hormone is involved with the development of male reproductive tissues, secondary male sexual characteristics (such as for instance muscle development), bone formation, etc. Therefore, the abnormal testosterone levels caused by male hypogonadism may have important negative effects on health.