Add Yahoo as a preferred source to see more of our stories on Google. Black Diamond Storm 500R: green night vision mode The best headlamps for hiking and camping aren’t just comfortable and bright – ...

A new way to artificially control muscles using light, with the potential to restore function to muscles paralyzed by conditions such as motor neuron disease and spinal cord injury, has been developed ...

Extreme light conditions, as experienced in shift-work schedules, shortened day length during winter months or transmeridian travel, can cause negative health effects, which include cognitive deficits ...