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Insomnia is associated with increased inflammation and its consequences, such as depression and various medical illnesses. These investigators examined inflammation levels in 123 older individuals (mean age, 66) with chronic insomnia participating in a randomized study of two nonpharmacological insomnia therapies.
The treatments were 4 months of twice-weekly cognitive-behavioral therapy (CBT-I), which targets sleep behaviors and arousal, and tai chi chih (TCC), which emphasizes relaxation and is associated with reduced sympathetic nervous system activity. A control condition provided educational sessions about sleep hygiene. The two active treatments were associated with improved sleep. With CBT-I, this improvement was maintained for a year …