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Muscles Use Gears, Automatic Transmission

Analogies may not be perfect representations of reality, but it must pique the interest of all of us the way Elisabeth Pennisi in Science1 compared muscle to cars and bicycles: One look at a ballerina as she pirouettes and poses drives home the remarkable ability of our muscles to adapt to diverse biomechanical demands.  Manny […]

Your Body Knows Its Allies at Gut Level

How come your body doesn’t fight its good bacteria?  It sounds like a question only a scientist or a kid would ask, but think about it.  Your body jumps to arms to fight off pathogens, but lets millions of bacteria live in the intestines.  These bacteria help you digest your food, but are not “you.”  […]

Human Endurance: Is It Evolutionary?

Some people are gluttons for punishment.  Many a couch potato is probably content to watch an Ironman or Ultramarathon on HDTV from a recliner, but the ones who take part in the grueling endurance contests gaining popularity illustrate some human capabilities scientists are only beginning to understand.  Nature1 described one called the Primal Quest adventure […]
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