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correlational
mixed effect
Taking 3 grams of glycine before bed might work differently than sleeping pills like benzodiazepines for improving sleep, according to sleep monitoring and self-reports.
Scientific Claim
Ingestion of 3 grams of glycine before bedtime is associated with different effects on sleep quality compared to traditional hypnotic drugs such as benzodiazepines in individuals with chronic unsatisfactory sleep, as measured by polysomnography and subjective assessment.
Source Excerpt
“Thus, a bolus ingestion of glycine before bedtime seems to produce subjective and objective improvement of the sleep quality in a different way than traditional hypnotic drugs such as benzodiazepines.”