I used to do alot when i was 15 to around 18 . I am 26 now and feel fine.

The reason i gave them up though was because they do make you feel 'depressed' if you have been doing them alot . I reckon thats because they make you happy by releasing chemicals in your brain and you simpily cant replenish these chemicals quick enough if your doing lots of pill regulary. When i say depressed i dont mean i wanted to kill my self or anything stupid just didnt laugh at shit that i usualy found funny and generally was bored of everything and was miserable fucker.

Also as has been said the pills back then where proper. I remember feeling a rush pulsating through your body from a decent pill back in the day. Took one last year at a mated birthday and it was shite didnt feel anything like the ones we used get.