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correlational
positive effect
Taking glycine before bed might help people remember things better during the day, according to memory tests.
Scientific Claim
Glycine ingestion (3 g) before bedtime was associated with improved memory recognition task performance in individuals with chronic unsatisfactory sleep, as measured by cognitive function tests.
Source Excerpt
“Effects on daytime sleepiness and daytime cognitive function were also evaluated. Glycine lessened daytime sleepiness and improved performance of memory recognition tasks.”