Seasonal affective disorder (SAD), now known clinically as major depressive disorder with seasonal patterns, is a condition that causes sadness or depression when the seasons change. It most typically ...

The shorter daylight hours and reduced sunlight in the fall and winter mean less light exposure, which can make you want to hit snooze on your alarm clock and sleep all day. This case of the seasonal ...

Man in front of a light therapy box, which mimics the sun and treats people suffering from seasonal affective disorder. You don't need a clinical definition to know something's off when the mere ...

Feeling a bit down when the days become shorter is totally normal, but if your change in mood is more pronounced, it’s possible you have seasonal affective disorder (SAD) — a mood disorder that is ...