Seasonal Affective Disorder (SAD) - there's a reason it's called the "post-summer" blues: it isn't psycho-somatic, it is very real. As the sunlight wanes over the days, you may not consciously notice it, but your body certainly will. This goes particularly hard for people who live in the Northern regions, like Canada, where it's as if someone had cast a blanket of inescapable emotional gloominess - you end up feeling sort of hollow, empty, struggling with sleep, and strangely insecure.

The antidote: light therapy lamp(s), along with Vitamin D supplements. And a good hug from someone you love.