Andrew Huberman· PhD
we're going to talk about back and core stiffness as such a key feature of having a strong back when you hear the word stiffness you probably think well that can't be good I don't want a stiff back ah but you actually want to be able to generate rigidity within your core and spine in order to move your limbs to throw a ball or to do a martial arts Punch or to even dance gracefully or even just move up some stairs without falling