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12 Surprising Causes of Depression
Seasonal affective disorder (SAD) is most commonly associated with winter blues, and it afflicts about 5% of Americans.
But for less than 1% of those people, this form of depression strikes in the summer. Warm weather depression arises when the body experiences a "delay adjusting to new seasons," says Alfred Lewy, MD, professor of psychiatry at Oregon Health and Science University, in Portland.
Instead of waking and enjoying dawn, the body has a hard time adjusting, he says, which could be due to imbalances in brain chemistry and the hormone melatonin.
De–stress your life, sleep better, and conquer depression with the latest news and insights on mood management, plus special offers.