Everyone complains about the weather, the old line goes, but nobody ever does anything about it. But it’s not exactly true, is it? People have always done something about the weather—mostly by trying to predict it, then arranging our lives around the forecast.It makes sense, then, that we’ve picked up a few ideas about outside conditions that don’t quite hold up. From cold weather making you sick to red skies in the morning, here are some common beliefs about the weather