The general feeling is that exercise during pregnancy is good from a psychological point of view.

BBC: Exercising during pregnancy

The good news is that sleep and exercise already have something of a relationship: Getting enough of one can make it easier to accomplish the other.

CNN: Exercise plus sleep may lower cancer risk in women

"I think this study really helps to show that when you look across a lot of different people, exercise is a good thing, " Flynn says, noting that past studies have included far fewer women and older people.

CNN: Moderate exercise safe, healthy for heart-failure patients

The good thing about this exercise is that the little guys get a chance to compete.

WSJ: Menu

Few studies have compared exercise to drug treatment, but two randomized trials have shown that vigorous exercise combined with cognitive treatment is just as good as spinal fusion surgery, with fewer complications.

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Other studies have shown that drinking coconut water with added sodium is as good as a typical sports drink for re-hydration after exercise.

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