Beer and Baldness

Why is it that men lose hair at almost the same time that they gain weight around their middle?

Why does beer lead to a pot-belly? Whereas stale beer is supposed to be a great hair conditioner?

I can either drink the beer and watch it go straight to the centre of my body... or I can let it go stale and use it to get some of my hair back.

Belly and baldness...Why does one always have to choose?