Exercising is General in the Universe
Animals, in a way, exercise naturally like humans. The way they play, move, gather, walk, and run, among other activities, are all forms of exercising. We can even say that plants exercise, since the wind creates movement in their leaves and branches in the way they tremble, these are all examples of exercising. The planet Earth exercises too. Earth has various movements (many are still unknown) and all the stars and galaxies, along with their creatures. If they neglect to move or exercise, their heat will decrease, and they will fall short of their responsibility. If the Earth and planets stop circulating and exercising, their heat will vanish, and they will be deprived of the proportionate and balanced movement they possess.
The word exercising means training and moving. Movement is in correlation with exercising, and they are, in fact, one.