Sure it does ..... no pain no gain .... 
sides, I'm not 18 anymore ...... exercise should start to hurt
already huh ....
err... seriously.. its good to push urself a bit, but ur body will
have injuries if you don't slowly increase your rate of exercise
and instead push yourself over what your body is used to
and that's exactly it - we not 18 anymore wor.... u don't want
the aches to come back and haunt you when you 80 (when u just take
out your CPF money) u know...
