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 ...

Economics professor Christopher Clarke joins WIRED to answer the internet's burning questions about The Great Depression.

Feeling tired and lonely during colder months could be seasonal depression. This condition, officially called seasonal ...