I said this in another thread but I think tren is contributing to a lot of tears. At local gyms alone I have seen at least four pec tears and it wasn't like they were even benching heavy.
Well, test-based anabolics rob connective tissue of nutrients, in general, which makes them brittle, over time. Plus their muscles quickly outperform their overall structural integrity, which never adapts fast enough to keep pace.
Look at Levrone. Guy goes from struggling with 225 on bench to repping 315-405 in a matter of months. That's ALL drugs. The physical strain is insane.
No wonder so many of these guys injure themselves.
Not to mention the extreme diets and regularly becoming unhealthily lean.