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How can we sustain and balance the exploding global population?
What would the world be like if humans were to disappear from the planet?
Ira talks with author Alan Weisman about what the world might be like if humans were suddenly to disappear from the planet.
Doctor Jordan Metzl says specific cardio and strength training regimens can trea...
Exercise scientists Tamara Hew-Butler and Greg Whyte talk about how the body cha...
Can regular mental exercise help slow down the progress of dementia?
Can exercise help keep aging brains healthy?
New York Times science writer William Broad’s book investigates popular health c...
Think caffeine dehydrates you? Or that you can't get too much water on a hot day? Douglas Casa, of the Korey Stringer Institute, sets the record straight.