My hair has thinned around the temples and front in the middle over the past year or so, some of the hairs on my "hairline" are beginning to feel all alone and I still can't grow a beard (I made an attempt because if you shave your head it's said you really want to draw focus downwards to your eyes or face rather than your big bald head but after about 2 months I had decent growth down the sides and on the chin but hardly anything on my cheeks and my tache was basically loads of long hairs with lots of space inbetween them. Since then I've been using no.1 clipper on facial hair to see if the cheeks ever grow in (facial hair doesn't all grow together at the same time) and there has been some more growth but I've many friends with lovely great beards and Cristiano Ronaldo's hairline) so if it's not a myth then I'm an exception to the rule.