Andrew Huberman· PhD
the motor neurons that are responsible for more distal mus muscles um that is further from the midline sit outside of those and so as you get out to the movement of the digits you know the fingers and toes um those are the most distal from the midline the rate and pattern of degeneration of neurons as a function of Aging even if there's no ALS or Alzheimer's or Parkinson's or anything is always outside in