NTP Review of Shift Work at Night, Light at Night, and Circadian Disruption
Primary Uses or Exposures
- People who, by virtue of the nature of their work, lifestyle choices, or residence, are subjected to interruptions in the natural light-dark cycles and have the potential for circadian disruption.
- Over 10 million adults (7% of the U.S. population) frequently work night shifts (defined as working any amount of time between 1:00 a.m. and 5:00 a.m. for 6 to 30 days over the previous 30-day period).
- People are exposed to aberrant lighting conditions resulting from exposure to electrical light at night (LAN) from outdoor lights, indoor lights at home and at work, and using self-luminous electronic devices.
|Jan 19, 2012||Federal Register notice requesting public comment on nominated substances (PDF HTML)|
|Apr 01, 2014||Concept Document|
|May 07, 2018||RoC Protocol|
|Aug 24, 2018||Draft RoC Monograph|
Meetings & Events
|Jun 25, 2013||
NTP Board of Scientific Counselors Meeting
|Board of Scientific Counselors||
|Mar 10, 2016||
Workshop: Shift Work at Night, Artificial Light at Night, and Circadian Disruption
|Webinars & Workshops - RoC||
|Oct 05, 2018||
Peer Review of the Draft Report on Carcinogens Monograph on Night Shift Work and Light at Night
|Expert Panels - RoC Monographs||
Supplemental materials for events, meetings, and workshops prior to 2016 have been archived. These archived materials frequently include presentations, background materials, and public comments. Email us or use our contact form to request a list or copy of archived materials for the following meeting.
Note on Accessibility: Persons with disabilities or using assistive technology may find some documents are not fully accessible. For assistance, email us or use our contact form and identify the documents/pages for which access is required. We will assist you in accessing the content of these files. NIEHS has helpful information on accessibility.