Baldness will cause due to hereditory or due to a decease called alopatia. Now a days, due the use of artificlal detergents and cosmetics, the baldness is increasing in the society. They say balds are intelligents !!!
I too agree with you. It is due hereditary or by the way of our living. I dont think baldness has something to do with intelligence. Ofcourse some most intelligent people are/were bald. Hence such a SAY came into existence.