Calgary has also horribly cold winters which forces a lot of people to stay inside most of the winter. Maybe someone should do a correlation study with days/ye

Calgary has also horribly cold winters which forces a lot of people to stay inside most of the winter. Maybe someone should do a correlation study with days/year where temperature doesn't exceed 20F (I know correlation != causation but at least it's one more hypothesis) . I personally feel depressed on days where I have to stay inside all day, and just taking a walk outside for half a hour uplifts my mood quite a bit.