There are many reasons why men can lose their sex drive and simple factors like tiredness, stress, depression, certain medications (antidepressants and hypertensive drugs), excessive alcohol consumption, illicit drug taking, and low testosterone levels may all play a part.

What can make a man not to be sexually active?

Most men experience it at some time in their life, and the causes can be physical or psychological. Physical causes include heart disease, diabetes and raised blood pressure. Alcohol, smoking and illegal drugs, as well as some prescription medicines, can also cause erectile problems.

What triggers a man sexually?

Arousal is the stage in which physical, sensory, and emotional cues prompt the brain to release a neurotransmitter known as acetylcholine. This, in turn, triggers the release of nitric oxide into the arteries of the penis, causing them to expand and rapidly fill with blood.