Asking for research purposes.
If you don't fap for an extended time as religion's like Islam and Christianity encourge it can lead to a lower libido, infertility and testicular cancer. Also the sperm you don't ejaculated will eventually die in the balls after about a week of production, so it isn't like this resource that you are losing every time you fap, in fact regular fapping (3-6 day interval) leads to better sperm potency.