Fortunately, after my 14th year on Earth I quit taking medication unless it was very necessary to do so. Also I very rarely (socially) drink. Now Im 37, and I've been quite healthy although I'm not careful what I eat and although I smoke quite a bit.

A good tip for health is alkaline diet. I can eat whatever junk I want as long as I also assist my body to keep toxicity levels low. I also take multivitamin supplements once in a while. :)