public marks

PUBLIC MARKS from Newspartnergroup with tags science & "biological rhythms"

07 November 2007 12:00

Artificial illumination can mess with more than your mental health.

Artificial illumination is fooling the body's biological clock into releasing key wakefulness hormones at the wrong times, contributing to seasonal fatigue and depression. And daylight-saving time, extended by Congress this year for an extra four weeks, risks dragging even more Americans into a winter funk.