im not sure, my eyesight has become sightly worse over the night but its still good
actually we do have a muscle in the brain:
"The fornix is an arching bundle of white
muscle fibres located just below the corpus callosum within the brain. Its rear portion is attached to the corpus callosum, but in the front, it is attached to it by the septum pellucidum. The fornix features two symmetrical halves, one of which extends slightly into each of the hemispheres of the brain. These parts are connected in the middle (at the body of the fornix) but separate in the front and back to form the anterior pillars and posterior pillars, respectively. The body of the fornix is a flattened triangular shape, which is slightly narrower in the front than in the rear."
also i suppose the reason they dont teach this is the same reason they dont teach what fluorine, a calcificant is for
edit:
also ive been all night overdoing the exercise to make sure theres no risk
i just taught my sister the exrecise without interpretations, she can tell its effective since she ahs seen the improvement on me
so she is on it, you can too lean to tense the fornix of the brain seems pretty safe after not having got damage myself doing it in excess, anyway dont over do it a slight tension is plenty enough
