With dysthymia (chronic low mood), depression symptoms are less severe but can last for a longer period of time. Causes are not definite but may include brain chemistry changes involving serotonin. Symptoms are persistent sadness, sleep problems, insomnia, feelings of guilt, loss of interest and energy, and more. Possible treatments include medications, therapy, and other options. Follow the links below to find WebMD's comprehensive coverage about how dysthymia is caused, how to treat it, and much more.
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