Every winter the cycle repeats itself: we look outside our windows and despair to the sight of a cloudy winter sky, with no trace of the sunny days. But the familiar “winter blues” feelings might not be just a “phase”: for some people such periods of low light exposure represent a serious problem to face, and that’s where the term “seasonal affective disorder” (SAD) comes in place. Why does SAD start, and can a look at the neurobiology of the brain help us to understand it more? Continue reading SEASONAL AFFECTIVE DISORDER (SAD): A “WINTER BLUES” IN OUR BRAIN?