Buddy I love seeing that word being used, it's one of the best things I gleaned from my post secondary education. At least I think Family Guy was post secondary, I'm pretty sure I was out of school before it premiered(?)
@Jerbear I will tag onto @ironwill 's post here - I remember when I learned about what ironwill discusses at first I thought this was great news cause hey it'll help my heart get stronger right? Turns out that the problem is that along with that strength comes growth as he mentioned and with that growth comes thickening.
The heart has a rather unique structure compared to most other human muscles in that it is not anchored to bone via tendons. The newfound thickening make it less flexible so that chamber can't expand to it's full capacity. From there on it's a vicious circle, as well as the damage the newfound high BP brings to the kidneys etc that inflexibility itself increases BP and you get stuck in that loop.
Disclaimer: I arent no Dr so this post may be slightly factually fuzzy and possibly just a week arguement that I have used for years to justify my personal lack of cardio exercise in my programming.
I bet some of the thickening comes from our relentless training? That combined with gear useage. I wonder if it increases if you just injected test and didn’t exercise?
Now I also wonder if it didn’t thicken if with the strain we place on the heart lifting heavy poundages mixed with more muscle that if the ventricle would tear? Or strain damage?