Telomerase allows the body to grow new cells and rejuvenate old ones, hence underlying the belief that epithalon could play a role in prolonging the lifespan of an organism [4]
Healing effects of BPC-157 on muscle, tendon, and ligament injuries in experimental models
PloS one 10 , e0141399 (2015)
Interleukin-6 signaling and anti-interleukin-6 therapeutics in cardiovascular disease
It may be that during periods of host weakness, microbes can opportunistically resurge, especially if protected by biofilms and other persistent mechanisms
This distinction matters not because B12 injections are inherently dangerous, but because the systems surrounding the injection determine how quickly and effectively a provider can respond if something unexpected occurs