While most of us know about or have heard of bipolar disorder or manic depression, it's easy to think that it doesn't affect that many people. After all, many patients don't disclose their condition to co-workers or acquaintances, and the casual observer may not detect anything more significant than an especially good mood or a person having a bad day. But almost 6 million Americans are affected each year by bipolar disorder, according to WebMD.
Bipolar disorder doesn't discriminate based on gender or race, and seems to affect all groups evenly across the board. While most often symptoms present themselves in young adulthood (late teens to early 20s), older adults are susceptible as well as young children.