My dad went bald at 22, my brother shaved his hair at 21 because a receding hairline, my mums dad went bald at 22 (baldness is passed on from the female line), my uncle went bald at 23...Christ I've got two years left!....

Grey hair's are the least of your worries! From the age of 16 onwards I've been told I look old - it's been a hard life, what can I say! :p

At the end of the day you can still rock out with grey hair (see Mark Knofler, Eric Clapton), and you can do the same if bald (Kerry King, Joe Satriani)...

Oh!!! To be young and have a full head of hair again! ;)