Post-traumatic stress disorder can happen to a person after experiencing a traumatic event that has caused them to feel fearful, shocked, or helpless. It can have long-term effects, including flashbacks, difficulty sleeping, and anxiety. Examples of events that can...

A person with bipolar disorder will experience changes in mood, energy, and activity levels that can make day-to-day living difficult. Bipolar disorder can cause severe disruption to a person’s life, but the impact varies between individuals. With appropriate...

Anxiety is a normal and often healthy emotion. However, when a person regularly feels disproportionate levels of anxiety, it might become a medical disorder. Anxiety disorders form a category of mental health diagnoses that lead to excessive nervousness, fear,...

Depression (major depressive disorder) is a common and serious medical illness that negatively affects how you feel, the way you think and how you act. Fortunately, it is also treatable. Depression causes feelings of sadness and/or a loss of interest in activities you...