Regarding the walking thing...

When you are do something because it's "good" for you or you "have" to, I think you'll use any excuse to get out of it. When, because of a change of attitude, an activity becomes pleasureable, we wouldn't miss it for anything.

Most activities involve using your torso, arms, legs and moving your head. You may not like washing the dishes, but you enjoy sex. They're both activities. Now for some, sex may seem like washing the dishes.

It's all about your attitude towards it.

Karen