Hair… Hair is a 56 billion dollar a year industry. What is this attraction with hair? Why do both men and women focus so much on how it looks, what color it is, are the ends split, and how long it is. Hmm. Length, how important is length? It’s interesting how we as humans look at the length of someone’s hair. Where did this come from? How did it originate, and why do women use human hair clip in extensions?