Simple device monitors health using sweat

A device that monitors health conditions in the body using a person's sweat has been developed by Penn State and Xiangtan University researchers, according to Huanyu "Larry" Cheng, assistant professor of engineering science ...

Mapping the inner workings of a living cell

Imaging tools like X-rays and MRI have revolutionized medicine by giving doctors a close up view of the brain and other vital organs in living, breathing people. Now, Columbia University researchers report a new way to zoom ...

Did last ice age affect breastfeeding in Native Americans?

The critical role that breast feeding plays in infant survival may have led, during the last ice age, to a common genetic mutation in East Asians and Native Americans that also, surprisingly, affects the shape of their teeth.

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