News & Announcements

Press Release

Adverse Health Effects of Nighttime Lighting

June 19, 2012



The American Medical Association announced its adoption of new policy recognizing the disruptive effect of exposure to excessive nighttime light and the importance of developing new lighting technology.

Nighttime light exposure impacts night workers by disrupting the body's natural circadian rhythm, which is associated with adverse health effects including increased risk of cardiovascular disease and diabetes. Artificial nighttime light also causes safety hazards such as glare from road illumination and headlights, leading to unsafe driving conditions. The new policy seeky to improve public health and safety by promoting research on the effects of exposure to artificial nighttime light, and development of lighting technologies that minimize circadian disruption.

Site Map | Contact Us | © 2017 by the President and Fellows of Harvard College