Information on the circadian body clock & light including SAD (Seasonal Affective Disorder, Winter Blues), Jetlag, Shiftwork, Sleep. TRIAL system. Products to combat associated problems. Sales worldwide, ISO9002 quality ...

The Society for Light Treatment and Biological Rhythms is a not-for-profit international organization founded in 1988, dedicated to fostering research, professional development and clinical applications in the fields of light therapy and biological rhythms.

The American Association for Medical Chronobiology and Chronotherapeutics (AAMCC) provides an organizational framework for scientists and healthcare professionals interested in the medical application of chronobiology and chronotherapeutics.

Are you a night person, someone who doesn't feel sleepy when the rest of the world does, and who has trouble waking at a so-called normal hour Or are you a lark, someone who nods off early while all of your friends are still rarin' to go, but wakes up bright-eyed and chipper at the crack of dawn the next morning Or maybe your schedule is less predictable and seems to rotate around the clock -- ...

CHAPEL HILL - New research by University of North Carolina at Chapel Hill scientists has proven that a light-sensitive pigment they discovered in the eye, the skin and part of the brain controls the body's internal clock.