Sadly, glutathione levels decline with age and in conditions like chronic stress, cancer, HIV/AIDS, type 2 diabetes, neurodegenerative disorders, and chronic exposure to toxins and substances like cadmium and alcohol
Larsson A, Ristoff E, Anderson ME: Glutathione synthetase deficiency and other disorders of the gamma-glutamyl cycle
Smith RL, Flaws JA, Gallicchio L
If you're 35, metabolically healthy, training well, sleeping well, and just curious about peptides because you heard Joe Rogan talk about them, the honest answer is: your time and money are probably better spent elsewhere first
Deeper, Restorative Sleep: GH is primarily released during deep, slow-wave sleep
Nelson et al