Soul Searching

A chemical used by bacteria to invade other cells may boost the chance of successful rehabilitation from spinal and brain injury, research suggests.

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Mothers-to-be who eat nuts every day may increase their child’s risk of developing asthma by 50%, claim Dutch researchers.

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By TARA PARKER-POPE
New questions have emerged about whether long-term use of bone-building drugs for osteoporosis may actually lead to weaker bones in a small number of people who use them.

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By NICHOLAS WADE
To reach Edward O. Wilson’s office on the Harvard campus, one must first push through a door with a sign warning the public not to enter. Then, enter a creaky old elevator and press two buttons simultaneously. This counterintuitive procedure transports one into a strange realm.

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