News tagged with light

Related topics: wavelength · solar cells · laser · physical review letters · photons

Using light to stop itch

Itch is easily one of the most annoying sensations. For chronic skin diseases like eczema, it's a major symptom. Although it gives temporary relief, scratching only makes things worse because it can cause skin damage, additional ...

1 hour ago
popularity13 comments 0

Light pollution may cause insomnia in older adults

A new study is the first population-based investigation to report a significant association between artificial, outdoor light exposure at night and insomnia, as indicated by older adults' use of hypnotic drugs.

Nov 30, 2018
popularity349 comments 2