I have noticed that lately my semen production has decreased, and also so has my sex drive. Lately when I orgasm I usually "shoot" about 5 times... My record was 12 spurts about 2 years ago... Also I am not as horny as I used to be... I think this could be because I never get a good nights sleep anymore, really stressed with school and work and just always busy... Other than that I'm in good health, fit and exercise 4-5 times a week... My question is how do I fix this? How do i get my semen production and sex drive up?