That's a tough one for me. I seem to be stuck on an axis of either being nerdy, anti-social, physically unfit and intelligent or outgoing, stupid, and physically fit. I've varied along the axis throughout my life and never managed to be a good nerd while also being mentally and physically healthy. I've seen a lot of other people do it, it's just not something I've been able to pull off.
I work with a lot of people who remind me of my former self and I'm afraid to encourage them to find balance in their lives because I don't want them to lose their genius like I feel I did. It's tough when you grow up a nerd and find most of your self-worth and security in your intellectual superiority and then lose it because you thought the grass was greener on the other side.