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For a good heart workout, it's OK to wait for the weekend, new research finds
NBC News via Yahoo News· 11 months agoIf you don’t have time to exercise during the week, longer workouts over the weekend may be as good...
Mexico City's 21 million residents are facing a severe water shortage
NBC News via Yahoo News· 3 months agoMexico City is in the grips of a severe water crisis, as lingering drought and years of low rainfall...