Never mind the grumbles and groans that accompany a clock alarm, along with a lunge for the snooze bar and murmurs of "five more minutes."

Mental health tends to change over the course of the day, a new study shows. The findings suggest it may make more sense to tackle a problem in the morning.

We’ve all heard of seasonal affective disorder — the phenomenon that explains why so many people feel more depressed during the winter. But can our mental health fluctuate at different times of the day,

Mental health is highest in the morning and lowest at midnight. Mood changes daily, with Mondays and Fridays being better