Actually, AH is the greatest excercise machine ever made.
True, you're sitting down, but gawd, the constant flexing of the biceps and triceps ON BOTH ARMS as we work the HOTAS, the sheer scope of how many thousands of times we work the legs on the rudders... and the fingers getting stronger and stronger from gripping the damn force feedback stick...
improved reflexes, eye-hand coordination, etc etc.
AH should be sold in a box with a squeegee hat with straws and slots for a gatorade jug!