Went on a health kick sometime last year (more to do with relieving stress than a sudden desire at 35 to be fit) and am going 3 to 4 times a week. Have noticed that my normally extremely healthy hair has gone wrong. I'm not normally into shampoos - have never needed to be, just buy whatever smells nice and doesn't cost too much. However my hair doesn't look good - lots of split ends so I wondered if anyone had any advice.