Maybe. Correlation isnt causation, but the link is very strong with cancers of the prostate, breast, colon or thyroid, and no lab test can promise you'll be fine on long-term HGH. Bro science skips the obvious: cancer means uncontrolled growth, and the H in HGH stands for growth. The upside is debatable too, since these guys also run reta or steroids and credit HGH. Risk versus benefit looks lousy next to TRT. People take testosterone alone, but almost nobody takes just HGH. I think testosterone and GLPs carry the load for HGH bros, recovery included, and HGH is the garnish at most. GH peptides are great for the labs though, with IGF-1 and ideally fasting insulin, A1C and glucose to test.