Alcohol and Drug Problems and Depression
The link between depression and alcohol or drug dependence is strong.

Coping with Cancer
Experts estimate than one in four cancer patients will experience some degree of depression, which may affect their relationships with their friends or family members.

Dementia and Depression
Because depression can sometimes affect memory and cognition, it is often difficult to clearly differentiate it from dementia.

Heart Attack: the Emotional Effects
Many heart attack victims feel angry that the attack happened to them, guilty about not taking better care of themselves or worried whether they will survive the attack or suffer another one. Result: They become depressed.

Depression and HIV
As with other serious illnesses such as cancer, heart disease or stroke, HIV often can be accompanied by depression, an illness that can affect mind, mood, body and behavior.

Obesity and Depression
The obese are often unhappy about their weight and may also be clinically depressed, prompting a great deal of speculation about the connection between obesity and depression.