A teacher is given the gift of life by one of her colleagues, a Purple Heart recipient gets a life-changing surprise, a man starts a movement of positivity with one simple gesture and service dogs get a chance to serve the nation's bravest.

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Study: Weekend-Only Workouts Offer Benefits
A new study published in the Journal of the American Medical Association found that you don't need to exercise Monday to Friday if you're able to do at least 100 and 50 minutes of exercise on the weekend.
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