After 60, several critical systems are in decline simultaneously: Growth hormone (GH) secretion drops significantly with age, reducing IGF-1 levels that govern muscle maintenance, fat metabolism, and tissue repair Insulin sensitivity worsens progressively, increasing metabolic syndrome risk Inflammatory signalling chronic low-grade inflammation ("inflammaging") accelerates cellular damage Sleep architecture slow-wave sleep decreases, impairing the overnight GH pulse that drives recovery Peptides that target the GH axis secretagogues like sermorelin, CJC-1295, and ipamorelin work by stimulating the pituitary to release more of your own growth hormone
A., Han, Y
The clinical concern is the pharmacodynamic clash, not a metabolic one
For this reason, opinions do not replace clinical evidence or professional assessment
and deficiency has been correlated with low testosterone levels in observational research
The name describes what its discoverers observed, not a proven mechanism