SUNDAY, Nov. 9, 2025 (HealthDay News) — As the days get shorter and temperatures drop, many people start to feel a noticeable shift in their mood, a condition known as seasonal affective disorder.

This type of depression — commonly known as SAD — happens around the same time every year, most often in the fall and winter, when sunlight is limited.

Having the right tools can make a big difference in how you feel during these months, Stephanie Marcello said in a news release. She’s chief psychologist at Rutgers University Behavioral Health Care in New Brunswick, New Jersey.

SAD affects people in different ways, but common symptoms include feeling sad most of the day for most days, low energy, sleeping more than usual, overeating or losing your appetite, weight changes and losing inter

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