www射-国产免费一级-欧美福利-亚洲成人福利-成人一区在线观看-亚州成人

Global EditionASIA 中文雙語Fran?ais
China

Nighttime artificial lighting linked to depression

China Daily | Updated: 2025-06-24 00:00
Share
Share - WeChat

A new study has revealed that chronic exposure to artificial light at night can trigger depression-like behaviors by activating a specific neural pathway in the brain.

The study, conducted on tree shrews — diurnal mammals genetically close to primates, offers critical insights into how nighttime light may disrupt mood regulation. It has been published in the journal Proceedings of the National Academy of Sciences.

The research team, led by researchers from the University of Science and Technology of China, the Kunming Institute of Zoology of the Chinese Academy of Sciences, and the Hefei University of Technology, exposed tree shrews to blue light for two hours each night for three weeks. Following this exposure, the animals exhibited clear depression-like symptoms, including a 20-percent reduction in sucrose preference, diminished exploratory behavior and deficits in long-term memory.

Using advanced neural tracing techniques, the researchers identified a previously uncharted visual circuit. Specialized retinal ganglion cells were found to send signals directly to the perihabenular nucleus, or pHb, which in turn projects to the nucleus accumbens — a key center in the brain for mood regulation.

Notably, when the pHb neurons were chemically silenced, the tree shrews no longer developed depression-like behaviors in response to light exposure at night. Further analysis through RNA sequencing revealed that these changes corresponded to altered activity in depression-related genes, suggesting potential long-term effects.

As light pollution and screen exposure become more pervasive in modern life, this study raises important questions about the impact of artificial illumination on psychological wellbeing and the implications for modern lifestyles.

"These findings give us both a warning and a roadmap," said Yao Yonggang, a professor at the KIZ. "The same light that enables our nighttime productivity may be subtly reshaping brain circuits underlying mood — but now we know where to look for solutions."

The discovery opens new avenues for targeted interventions that could mitigate the psychological impacts of artificial light while preserving its societal benefits, the study revealed.

Xinhua

Today's Top News

Editor's picks

Most Viewed

Top
BACK TO THE TOP
English
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
主站蜘蛛池模板: 国产素人在线观看 | 台湾三级香港三级在线理论 | 亚洲精品一区二区三区在线观看 | 国产女女视屏免费 | 91综合精品网站久久 | 91精品观看91久久久久久 | 草草影院国产第一页 | 国产成人不卡亚洲精品91 | 俄罗斯18videosex性欧美成人 | 欧美三级一区二区三区 | 久久厕所精品国产精品亚洲 | 久草视频在线资源 | 特级做a爰片毛片免费看一区 | 久久一区二区三区不卡 | 亚洲字幕波多野结衣作品 | 成人91在线 | 日韩精品视频免费在线观看 | 国产在线一区二区 | 亚洲精品视频专区 | 不卡一级毛片免费高清 | 久久福利精品 | 欧美一级影院 | 国产高清一级毛片在线不卡 | 日本一视频一区视频二区 | 日本一区二区三区在线 视频 | 欧美一级毛片特黄黄 | 欧美日本一道高清二区三区 | 在线视频亚洲欧美 | 女女互操 | 午夜欧美性欧美 | 欧美一级毛片免费高清aa | 久久精品国产6699国产精 | 国产免费自拍 | 大量真实偷拍情侣视频野战 | 久久综合本色宗合一本色 | 九九99久久精品国产 | 看片日韩| 1a级毛片免费观看 | 一级毛片私人影院免费 | 欧美成人自拍视频 | 最新步兵社区在线观看 |