His testosterone was on the lower end, but not catastrophic
For skin specifically, this matters because the accumulation of senescent fibroblasts in aging dermis is one of the primary drivers of collagen loss
For example, using the chronic unpredictable mild stress (CUMS) model, studies have demonstrated that specific Chinese medicines significantly improve depressive-like behaviors in animals
Drug tolerance typically develops when an addictive substance has been misused, in rapid metabolizers where the body eliminates a medication at the shorter end of its half-life, or when someone has been taking a high dose of the same medication for a long period of time
It is one of the most studied drugs in the world, with a well-documented safety profile, and is on the World Health Organization's list of essential medicines
This study was conducted at a single center and included only weekly GLP-1 formulations, which may limit generalizability to other regimens such as daily agents or higher doses