[Voice Over] Surgeons are trained to provide care for others. Some biologists believe it's human nature, the desire to help. Scientists believe we're biologically programmed to empathize. I think it's one of the reasons our species has lasted this long. We have an innate instinct to support each other. You can only take care of yourself for so long. Because lets face it, some problems are way too big to carry on our own. "
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