Meta-Analysis Estimates Summer SAD Affects 0.57% of People, Versus 5% in Winter

1 articles · Updated · The Washington Post · Jul 6

A meta-analysis of 24 studies covering more than 32,000 participants estimated that 0.57% of people experience summer seasonal affective disorder.
The report highlights summer SAD as a real but much rarer condition than winter SAD, whose prevalence was estimated at about 5% in the same review.
The finding adds evidence that hot weather can coincide with depressed mood for a small share of people, despite seasonal affective disorder being more commonly associated with winter.