A Texas teen has been hospitalised after trying to "catch-up" in the gym with his bodybuilding father and brother.
Jared Shamburger, 17, wanted to be "as big" as his father and older brother who have been lifting weights and body building for years, KTRK reports.
The teen decided to hit the gym for 90 minutes last week, and after a big weights session, he felt sore.
"Everything hurt," Jared said, unable to fully move his arms.
But when the soreness didn't wear off, he grew concerned. His mum called a doctor, worried he had rhabdomyolysis. It turns out she was correct.
Rhabdomyolysis, or rhabdo, is most commonly caused by muscular trauma and is characterised by muscle breakdown, according to medical journal BMC. It leads to proteins being released into the blood, which can damage the kidneys.
It can also cause death, but is treatable.
"If he hadn't told me, if we had just gone out of town about our way," his mother Judy told KTRK, "I can't even imagine. And I don't want to."
Jared was hospitalised for five days but is expected to make a full recovery. He also plans to hit the gym - just not as hard this time around.