It's a question that has puzzled and perplexed the greatest minds for eons and has literally had them scratching their heads. Why do some people go grey and/or go bald and why do others keep their colour and lucious locks?. The answer science is discovering is a fascinating one and it just might have you binning your Grecian 2000 soon. Luke also reveals an incredible connection between balding and becoming president of The United States. Hair raising stuff!