In cities that shine brighter at night, more people are struggling with insomnia

Publicly released:
International
Photo by Steven Hung on Unsplash
Photo by Steven Hung on Unsplash

In cities where people are exposed to more artificial light at night, more people are posting on social media about insomnia, according to international research. The team measured the artificial brightness of over 300 Chinese cities at night, and used insomnia-related social media posts from residents of those cities to compare how common the condition likely was in different areas. The researchers say using data from over a million insomnia-related posts, they found the brighter a city was, the more people were posting about insomnia. This link was stronger when air pollution was worse or temperatures were extreme, the researchers add.

Attachments

Note: Not all attachments are visible to the general public. Research URLs will go live after the embargo ends.

Research JAMA, Web page The URL will go live after the embargo ends
Journal/
conference:
JAMA Network Open
Research:Paper
Organisation/s: Southern University of Science and Technology, China
Funder: This work is supported by the Ministry of Science and Technology of China (grant 2022YFC3702703), the National Natural Science Foundation of China (grant 42107465), the Natural Science Foundation of Guangdong Province, China (grant 2023A1515011206), Medical Research Innovation Project (grant G030410001), and Major Talent Programs of Guangdong Province (grant 20210N020921).
Media Contact/s
Contact details are only visible to registered journalists.