The work that hairdressers do is much more important than you might think. It turns out that something as simple as updating your hairstyle can do wonders for your self-esteem. But sometimes, all it take to make someone feel beautiful again is a little change. The amazing hairstylist, Kayley, faced one of the toughest challenges of her career. A teenager walked into her salon, and the girl was battling depression to the point that she stopped brushing her hair. One day, a 16-year-old girl walked into Kayley’s salon. Her hair had become tangled, dirty, and unruly — just as her school’s class photo day…