You can’t do anything about the dry, cold air issues – but you can change the way you take care of your hair in the winter. Dry, dehydrated hair is prone to fraying, and if you don’t care for your ends, the split ends will travel all the way up your strands. Also, turn down the heat! Use a lower setting on your curling iron or blowdryer, or skip them altogether (at least half of the week). The heat from these tools creates micro-cracks in your cuticle, contributing to breakage.