DancingUser some-guy said getting his "groove on" is good for the heart.
About the exercise: From formal dances like salsa to just shaking it in your living room, dancing is a great aerobic workout as long as you dance for long enough to get your heart rate up. With dance, you're also using your core muscles -- the muscles in your abs and back, so you're working various muscles at the same time. And, a 21-year study published in the New England Journal of Medicine found dancing can reduce the risk of Alzheimer's disease and other forms of dementia in the elderly.
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