26yr old male partner has low sex drive.he admitted he needs to do something about it as its not fair on me.he doesn't think it's physiological help!

Worrying about.....: There is very little you can do other than to nag and offend him. He must do this on his own. Yes, it sure seems odd that a young man would accept this as his norm for living. But, he must get the evaluations needed for a thorough work up of the problem. In general at his age it is most likely not a physical problem. It is most likely a mental health or psychological issue.