If he sustains himself from having sex or jerking off I don't doubt his hyper activity. When I was 3 weeks without jerking off I felt I could train everyday all day and always had that extra something. Very happy and encouraging personality as well. As soon as I broke the run I became apathetic and lazy.
I should try it again... fucking hard it is but for training it does miracles. I can only imagine how much I'd improve if I sustained myself completely from that bullshit for a year straight!