The best headlamps for hiking and camping aren’t just comfortable and bright – they usually come with a surprising number of functions these days. If you’ve been using the same old headlamp for years ...

Optogenetics is a technique that has been in development for several years, and aims to combine optics and genetics to use light to control cell function. Researchers have now used optogenetics to ...

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 ...

Light is a fundamental signal affecting every form of life. Cycles of light and dark help set the biological clocks in ...

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 ...