After a traumatic event, some people have trouble sleeping, feelings of anger and heightened alertness. If this persists, it could be post-traumatic stress disorder, or PTSD. Symptoms of PTSD can affect as many as 1 in 8 people who survive.
Maybe you or someone you know constantly worries. The worrying can get so bad, it can sometimes make someone sick.
You often hear about Attention Deficit Hyperactivity Disorder in children, but many adults struggle with it too. But there are ways adults dealing with it can get some help.