Hi Christoff,
At 30 Years Old,there should be no problems,sure there is a temporary drop in energy but if you only indulge before bed there is no problem,it will actually help you to sleep...For the Older Guys out there you should consider your prostate health..Statistically,though there are other variables involved,it seems those who indulge to climax,in some way, enjoy far healthier prostates (About ten times a month seems optimum)...As one ages,it is also very much a matter of use it or lose it...This advice applies not just to Males!