These issues are caused by changes in brain chemicals. They can be triggered by emotional or physical stress.
- Depression - Clinical depression is a serious mood disorder that affects how one feels, thinks and behaves. Sufferers are diagnosed two weeks after exhibiting symptoms.
- Anxiety - Numerous disorders are capable of causing anxiety. Symptoms include nervousness, fear, worrying, panic attacks and social anxiety.
- Sexual abuse - Victims of this form of abuse often feel fear, anger and are often ashamed. They may also fall into depression, or experience flashbacks or post-traumatic stress disorder (PTSD).