no not at all its natural...... its better then going and getting knocked up just for pleasure. :D have fun
Absolutely less than you have done it for, because apparently it affects linguistic skills terribly.
In historical times, masturbation was considered bad, but now it is considered normal and does no harm and maybe may be a good thing. Masturbation can be performed by couples on each other and can be quite fun to do.
Yes as a mater of fact recent studies indicate that men who masturbate regularly have a lower incidence of prostrate problems in later life. That is of coarse assuming that they are not having normal sex regularly.