Psychology Today | 16.06.2026 07:18
Seasonal Affective Disorder (SAD) impacts an estimated 5 percent of individuals in the U.S. population. Most people associate SAD with wintertime, when short, dark days and frigid temperatures take their toll on mood and mental health. Outside of a clinical diagnosis, it’s common or even culturally expected to experience at least some degree of mood or energy shift in the winter months.
