it doesn't, he has indigestion
I have a hernia on my right side, I got it trying to pull a piece of rebar from the ground that was anchored in asphalt as a tent stake for a 100 ft tent. My uncle, who in his day was a legit 5'11" 240lb best that benched 400lbs as a junior in HS was trying to pull it out, and I though he loosened it a little, with his attempt, which he didn't, and I tried to pull it out sword in the stone style and rip, I tore my vas defrens from my pubic bone. It's an umbillical hernia that I never got fixed, the good thing is I can still lift heavy and never feel it, but if I flex my abs a certain way my ball tries to jump into my stomach. I need surgery, but I don't want to not train for 2 months. Maxing out with 400lbs on deadlift I might feel it only if I failed the lift, any weight I pull, 387lbs last maxout, I felt nothing.