Ever feel like you can't function without your morning cup of Joe? Trying to kick your coffee-drinking habit could lead to a mental health disorder, new research shows.

The latest version of the mental-health bible, the Diagnostic and Statistical Manual of Mental Disorders, now includes both caffeine intoxication and withdrawal. While caffeine intoxication was included as a diagnosis in the previous version of the manual, caffeine withdrawal was upgraded in the current manual to a diagnosis from a research diagnosis, which meant it required further study before it could be included.

Additionally, caffeine use disorder, which describes when an individual suffers side effects and is unable to kick the habit, was added to the current manual as a recent diagnosis.

Caffeine withdrawal can cause debilitating headaches, flu-like symptoms and depression. Though studies have found that caffeine has some health benefits, experts say people who suffer adverse effects should consider scaling back consumption.

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VIDEO: Dr. Charles O'Brien, chair of the research group, discusses why caffiene use disorder was included in the DSM-5.

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