Light and season depression

​People troubled by depression usually experience their dark moods in an on-again, off-again fashion. In that respect, seasonal affective disorder (SAD) differs only in that the oscillations follow a seasonal schedule, with depression usually starting in autumn and...

What is bipolar disorder?

​Bipolar disorder is a mental disorder, characterized by abnormal mood shifts as well as fluctuations in energy, activity levels and the ability to complete everyday tasks. Bipolar disorder is a serious mental illness that can damage relationships, career prospects,...