Exercise Feels Good

It is always such a chore to begin them. Even thinking about them sometimes makes one come up with excuses and reasons for not doing them. Sometimes they don't even seem to be working - especially when the scale works against you too. But afterwards, after the routine has been completed - it feels really good. And when you move around during the day - the limbs don't feel quite as "heavy" or "sluggish" as they used to. You find yourself sitting straighter - not slouching. And bending over is even easier. For all these positives, that really make you feel so good, why does is seem like such a chore to begin them?