Final answer:
Cessation of sexual activity can be caused by hormonal imbalances, medication side effects, physical health issues, and psychological traumas like stress and performance anxiety.
Step-by-step explanation:
The complete cessation of sexual activity can be caused by a variety of factors, which could be physiological or psychological in nature. Hormonal imbalances, such as those occurring during menopause, can diminish sexual function and desire, which sometimes can be addressed with hormone replacement therapy (HRT). However, HRT is approached with caution due to potential risks. Medication side effects, particularly from antidepressants, can also lead to the cessation of sexual activity. Additionally, physical health issues stemming from conditions like diabetes, obesity, and cardiovascular disease can be implicated. Psychological factors, including stress and performance anxiety, can equally contribute to the temporary or permanent cessation of sexual activity.