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Photograph copyright Tom Stewart/CORBIS Research has documented the central role human touch plays to our well-being. Massage therapy given to premature babies has been shown to speed weight gain, shorten hospital stays, and reduce the number of post-natal complications.      More From National Geographic • National Geographic TV Special: Skin • National Geographic: Unmasking Skin (feature) • Photography Home Page     Online Store Find photography products in our online store.

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