The various types of depression have different causes as well as different levels of severity. Which of the following best describes clinical depression?
a feeling of overwhelming sadness that usually follows a traumatic event
a medical condition that may occur due to a chemical imbalance in the brain
alternate feelings of extreme happiness and extreme sadness
a feeling of overwhelming sadness that usually follows a traumatic event
a medical condition that may occur due to a chemical imbalance in the brain
alternate feelings of extreme happiness and extreme sadness