I've been so happy to get through last winter without any malaise. I definitely made changes to my diet and added in using a "happy light", and overall have felt like actively trying to counteract that feeling (specifically in terms of seasonal depression) has seemed to pay off. At the very least, I would suggest people who feel this way specifically in the winter should try depression lights and taking things like omega-3 supplements (or modifying your diet). Can't say its truly effective but anything helps Edit: also fiber intake. Supplementing fiber has pretty much eradicated my problems with IBS, and I've made serious effort to getting back into cooking and generally adding much more fiber into my diet