High grip strength implies a history of lifting, carrying, and aggressively using hands, reflecting accumulated work.

“why is you know grip strength always comes up as this incredible predictor of mortality is it because being able to squeeze things with your hand is especially important yeah there's probably some edge cases but it's what does it imply if you have high grip strength right you again you didn't just wake up and have high grip strength by definition you have been lifting and carrying heavy things you have been using your hands aggressively manipulating things carrying squeezing all of these things pulling right and it's that work that is being captured through the integral of the final metric or the test”

“by definition you have been lifting and carrying heavy things you have been using your hands aggressively manipulating things carrying squeezing all of these things pulling right and it's that work that is being captured through the integral of the final metric or the test”