With the cold winter days stretching longer and sunlight feeling like a rare gift, it's easy to find yourself in a funk. Without those warm rays to provide that much-needed vitamin D boost, life can ...

The colder, darker winter days can be tough for mental health. Those who suffer from seasonal affective disorder may be hit ...

and even feelings of hopelessness or suicidal ideation. It's a condition that affects millions—researchers at Boston University estimate that 10 million Americans experience SAD, with women ...