causal
Taking 3 grams of glycine before bed doesn't change how long it takes to reach REM sleep.
Scientific Claim
A single 3g dose of glycine before bedtime does not significantly affect REM sleep latency in adults with chronic poor sleep.
Original Statement
“The latency to rapid eye movement (REM) sleep, however, was not changed.”
Evidence Quality Assessment
Claim Status
appropriately stated
Study Design Support
Design supports claim
Appropriate Language Strength
definitive
Can make definitive causal claims
Assessment Explanation
The RCT design with objective PSG measurements and lack of statistical significance supports the claim that glycine does not affect REM sleep latency. The study specifically measured this outcome and found no significant changes.
Evidence from Studies
Supporting (1)
0
Contradicting (0)
0
No contradicting evidence found