Sleep easier and better. A regular exercise program helps manage physical stress buildup, makes you feel better over all and probably live a longer and healthier life. But, if you really hate it and resent it, you're not going to follow through with it. You might as well try something else you find more pleasant. Participating in sports is a more enjoyable way of releasing stress and tension for many people.
Regular participation is as good as a regular exercise program.
Yoga, in a class or on your own, can also provide the benefits of a regular exercise program. It is, however, far less demanding for beginners, allowing the practitioner to slowly ease into the various stretches and poses. Moreover, you feel good while you are doing it and afterward. Done properly, yoga leaves muscles pleasantly stretched and stimulated. You should never be sore or sorry.