Uncooperative hair can be a pain to tame. There are many reasons why people have bad hair days, and determining the contributing factors may help resolve the problem. Weather commonly causes keratin damage on the interior of strands in humid climates. Keratin swells, which then causes hair to frizz. During the winter months, dry outside air, when combined with dry inside heat, causes static problems that make for fly-away strands becoming hard to manage. Putting hair in a bun or a braid can resolve the issue temporarily, however, it is not a long-term solution.