A growing body of clinical evidence supports glycine as a remarkably affordable sleep aid. At roughly 9 cents per 3-gram dose, glycine reduces sleep-onset latency by triggering peripheral vasodilation—the body’s natural pre-sleep temperature drop—without the grogginess or dependency risks associated with sedative medications.
The mechanism has been rigorously validated: glycine activates the suprachiasmatic nucleus, mimicking the thermoregulatory cascade that normally precedes natural sleep. Studies by Kawai and colleagues demonstrated that ablating this brain region completely eliminated glycine’s sleep and cooling effects, confirming the pathway’s biological specificity.
For patients and health systems seeking evidence-based, low-cost interventions, glycine offers a compelling alternative grounded in neurobiology rather than chemical sedation. Read the full article on GMJ Newsroom.
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