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Growth hormone levels decline with age, which is why supporting the GH axis has become a focus for longevity-minded individuals

Topical serums produce localized surface-level effects in the skin layers they penetrate, which is limited by the skin barrier

The bacterial peptidoglycan-sensing molecule Pglyrp2 modulates brain development and behavior

However, the use of this medication requires a prolonged initial treatment period of dose-escalation to attenuate the adverse gastrointestinal effects (nausea, vomiting, diarrhea) typically associated with GLP-1R agonists, which still occurred frequently but rarely resulted in discontinuation of treatment