This is when all sorts of behaviors happen especially with younger kids. The psychological side of it is lack of sun due to shorter days. The lack of sunlight while also spending more time doing less because of cold temperatures has an impact on behavior and mental health. Combine that with more of the middle school kids hitting even more levels of raging hormones as the year progresses and you have the absolutely typical January, February, March where the kids seem to be losing their minds but in reality it happens every year and is perfectly normal, predictable, explainable and unpreventable. Kids will be kids and there is nothing we can do to change it, (and no, it wasn't better back in the day because the science hasn't changed). Until we find away to have 15 hours of sunlight every single day there will always be swings.