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 ...

Please provide your email address to receive an email when new articles are posted on . CHARLOTTE, N.C. — The use of morning light treatment in patients with fibromyalgia helped stabilize their sleep ...

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 ...