What causes someone to become asexual. I have been like this for about 5 years but it doesn't bother me,I guess because I'm not interested in a relationship but even and most certainly not marriage and children.I hardly ever get turned on except sometimes when I'm on muscle relaxers. A doctor (a dumb one) gave me anti-depressants because I told him I was tired all the time ( by the way, they made me want to sleep all the time, I'd even want to sleep in the middle of getting ready). Ever since then I have been asexual. Can anti-depressants destroy your sex drive for good, even if you haven't taken them for 5 years?