Study links genes to social behaviors, including autism

Those pesky bees that come buzzing around on a muggy summer day are helping researchers reveal the genes responsible for social behaviors. A new study published this week found that the social lives of sweat bees—named ...

Wearable device measures cortisol in sweat

The hormone cortisol rises and falls naturally throughout the day and can spike in response to stress, but current methods for measuring cortisol levels require waiting several days for results from a lab. By the time a person ...

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.

'Fear detector' being developed

(PhysOrg.com) -- British scientists are aiming to develop a device that can detect the smell of fear, and that could one day identify terrorists, drug smugglers, and other criminals.

Lifelike lab-grown skin developed from human stem cells

Queensland researchers have become the first in Australia to use human stem cells to generate fully functioning skin tissue in a laboratory, a significant step toward better treatments for severe burns and wounds.

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