Why do we swing our arms while walking?

  it is rather difficult to say exactly why we swing our arms when walking, but there is no doubt that it is much easier to walk in comfort if the arms are allowed to swing naturally than if they are held stiffly by the sides of the body. 

Probably, therefore, the swing  of  the  arms assists  us  in unconsciously keeping accu- rate balanCe as we   move along, first on  the and the  one f then  foot  on  other.  Perhaps,   it may be partly a relic of the time   when  K;    !  primitive animals used their arms as well as their legs in walking, as a chimpanzee will do. In any case, the fact is that it is so much more comfortable to walk swinging the arms. It seems that Nature may have intended the swinging to help us in accurate movement.i