Smoking is sometimes seen as a dirty and bad habit but if the words of your loved ones do not motivate you enough to kick the ugly habit then maybe the following fact will help bring you to action. The Barbr says that smoking is one of the bad habits that causes hair loss. If you have a good head of hair and want to keep it then you may want to reconsider your bad habit. What follows is a list of more bad habits that will contribute to hair loss.