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Substance Use and Depression

Depression and Substance Abuse

People with depression may turn to drugs or alcohol to medicate their pain.

By Dennis Thompson Jr.

Medically reviewed by Christine Wilmsen Craig, MD

Mood disorders like depression and substance abuse go together so frequently that doctors have coined a term for it: dual diagnosis.

People who have suffered recent episodes of major depressionhave higher rates of alcoholism and drug addiction compared with the rest of the population, according to the U.S. Department of Health and Human Services. More than 21 percent of adults who experienced a depressive episode within the previous year engaged in substance abuse, compared with 8 percent of those not dealing with depression. And the staggering statistic isn’t limited to grownups: Research shows that teens struggling with the blues often “self-medicate” with alcohol, marijuana, and other substances.

But it isn’t always clear which one came first. Depression can cause substance abuse, but substance abuse also can lead to depression. In some cases, both are triggered by some external factor.

Depression and Substance Abuse: What’s the Connection?

A person dealing with depression might try to self-medicate using drugs or alcohol, says David MacIsaac, PhD, a licensed psychologist in New York and New Jersey and faculty member of the New York Institute for Psychoanalytic Self Psychology.

Depression often leads people to drink, which usually makes things worse. “In trying to self-medicate with alcohol, people don’t realize they’re using a depressant,” says Dr. MacIsaac. “In point of fact, it will intensify their depression.” The same goes for drugs, which some depressed people take to alleviate their symptoms. MacIsaac says they misidentify their depression as just some sort of down feeling and get in the habit of taking uppers.

Conversely, an addict or alcoholic whose substance abuse problem is out of control can develop mental problems. He might experience symptoms of depression or begin to hallucinate. If his depression deepens, he might try to commit suicide.

Depression and Substance Abuse: Shared Triggers

Depression and substance abuse can spring from the same sources. Research has found a number of connections between depression and substance abuse, including:

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