Mental illness is often thought of only as an adult concern. But about half of mental illnesses begin to reveal themselves in childhood. ---A long going, largely ignored epidemic gripping our youth well into their adult lives.
A nice infographic laying out both fact and myths about bipolar disorder (aka "manic depression") a complex mood disorder that is diagnosed based on the experience of manic episodes that are frequently mischaracterized or misunderstood.
Mental Illness- "Research has demonstrated that an imbalance in brain chemicals can contribute to the development of some mental disorders. It’s suspected that this chemical imbalance impedes the ability of the brain to send messages in between neurons.