What are the benefits of glycine?

Glycine is discussed by Andrew Huberman in various contexts. Although I don't have specific clip citations regarding glycine benefits directly from Dr. Huberman, it's typically highlighted for its role in promoting healthy sleep, aiding in digestive and metabolic functions, and as a supportive agent in cognitive functions due to its neurotransmitter activity in the brain. Would you like details on similar supplements or more broad benefits of amino acids as discussed in the Huberman Lab episodes?