Depression is not a natural part of growing old but rather a medical condition that should be treated aggressively.
"Depression in the elderly, or in anyone, should not be thought of as normal," says Victor Molinari, Ph.D., a professor in the department of aging and mental health at the University of South Florida. "Some groups are at higher risk, but the average older person is not depressed any more than a young person."
In general, only about 3 percent of the elderly living independently will experience depression. That figure increases to around 20 to 30 percent of people in nursing homes or with chronic illnesses like emphysema, heart disease or diabetes, according to Dr. Molinari.
"Two personality types are also at high risk: obsessive/compulsive people bothered by their lack of control over changes related to aging and dependent people who lose the loved ones they rely on," Dr. Molinari said.
Depression is often not diagnosed because of stereotypes that family, caregivers or even health care providers have that the elderly are depressed in general. And the elderly often mask their depression by packaging the problem in a physical complaint, so diagnosis can take longer.
According to the National Institute of Mental Health (NIMH), these are typical signs of depression:
Sleep problems, including too little, too much or rising earlier than desired
Decreased pleasure in previously enjoyed activities
Decreased energy or concentration
Appetite increase or decrease
Feelings of hopelessness or helplessness
Thoughts of death or suicide
Self-destructive and suicidal behavior
Older adults are more likely to die by suicide than other age groups, NIMH says. Although people age 65 and older make up about 13 percent of the U.S. population, this age group accounted for about 15 percent of all suicides in 2003, the latest year for which statistics are available. About 2 million adults 65 and older have a form of depression, and 5 million more may have some symptoms of depression. Depression is one of the most common conditions associated with suicide in older adults.
Depression often occurs at the same time as another serious illness, such as heart disease, stroke, diabetes and cancer, NIMH says.
In diagnosing depression, health care providers look for a person who has experienced several symptoms for weeks at a time. The provider will also do a physical exam and rule out other causes for the symptoms, which can include certain medications or medical conditions, NIMH says. Also people who are physically ill and who are not getting better often have an underlying depression. Medication, psychotherapy or a combination of both can be effective in treating depression. Mild cases of depression may be eased by psychotherapy alone. People with moderate to severe depression often are helped with antidepressant medication.
You can help prevent depression by staying active and being connected to other people through family, community activities, senior groups or church, Dr. Molinari says.
"If you notice signs of depression in yourself, a friend or a family member, don't wait until it becomes severe," Dr. Molinari said. Discuss your individual needs with your health care provider, or talk to the person with depression, and encourage him or her to speak to a physician and seek treatment from a mental health professional.