A large international study led by researchers at the Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, shows that major depressive disorder (MDD) not only increases risk ...

For decades, seasonal depression has been blamed on a lack of sunlight, but a study suggests the real issue may not be the ...

We know irritability when we see it or feel it, but what exactly is it? Experts differ on the exact definition, but a way to think of it is as feelings of annoyance and impatience that are out of ...

Discover what causes depression in children, its warning signs, how it's diagnosed, and treatment options to support and strengthen your child's mental health ...