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Outdoor light related to teen sleep and mental health

 


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Studies show that adolescents who live in areas with high levels of artificial light at night tend to sleep less, which can cause mood disorders compared to teens living in areas with low levels of night light. Will be higher. The research was funded by the National Institute of Mental Health (NIMH), which is part of the National Institutes of Health, JAMA Psychiatry..

“These findings demonstrate the importance of jointly considering both broader environmental and individual exposures. “Sleep studies,” says Dr. Diana Paksarian, a postdoctoral fellow at NIMH, the author of the study.

Daily rhythms, including the circadian rhythm that drives us ,It is believed that Contributes to physical and mental health. Artificial existence Nighttime disrupts these rhythms and can alter the light-dark cycle affecting hormones, cells, and other biological processes. Researchers investigated the relationship between indoor artificial light, daily rhythms, and mental health, but the effects of outdoor artificial light have received little attention, especially in their teens.

In this study, Paxarian, Kathleen Merikangas, Ph.D., senior researcher at NIMH and head of the Department of Genetic Epidemiology, and co-authors, represented nationally on US adolescents collected from 2001 to 2004. I examined the data from a typical sample. As part of the National Co-morbidity Survey Adolescent Supplement (NCS-A). The dataset included information on personal and neighborhood traits, mental health outcomes, and sleep patterns in 100,123 teens aged 13-18.

As part of an NCS-A face-to-face interview, adolescents completed a validated assessment to determine if they met the diagnostic criteria for various mental disorders. The teens also answered questions about their sleep habits, reporting how long they normally sleep and how many hours they usually sleep on weekdays and weekends.

Researchers calculated the average artificial light level for each census block group in the United States using satellite image data to measure teenage nighttime outdoor artificial light exposure. As expected, the level of artificial light at night depends on the level of a particular neighborhood Factors such as urbanity, socioeconomic level, and population density.

Importantly, teenagers who lived in areas with high levels of artificial light at night tended to report late nighttime bedtime and short nighttime sleep. This relationship can be attributed to various factors at the individual level (such as age, gender, race/ethnicity, number of siblings, parental education) and neighborhood level factors (such as county-level urbanity and population density). Held even after considering. According to the analysis, on average, teens in the areas with the highest levels of outdoor light went to bed after about 29 minutes and had 11 minutes less sleep than teens in the lowest areas. ..

The data also showed that higher levels of artificial lighting at night were also associated with a higher likelihood of mood or anxiety disorders. Specifically, teenagers who lived in areas with high levels of artificial lighting at night were more likely to meet the diagnostic criteria for bipolar disorder or certain phobias.

According to Paxarian and co-authors, It is a well-documented feature of certain mental disorders, including bipolar disorder. Research results suggest sleep disorders as a possible link between artificial nighttime light exposure and mental health outcomes, which should be tested in future prospective studies.

The findings also highlight social disparities in exposure to artificial light, and belong to racial/ethnic minority groups, come from immigrant families, or come from low-income families. Young people in the are shown to be more likely to live in areas with higher levels of outdoor light at night. To the extent that exposure to artificial light disturbs daily rhythms such as sleep patterns, it can be an additional stressor for teens who are already at increased risk of health problems due to social disadvantages. ..

Future studies investigating the effects of various properties of artificial light, such as brightness and spectral composition, show whether lighting-focused interventions are likely to help adolescent sleep and mental health. May help to judge.

“Exposure to ambient light is only one factor in the more complex network of sleep and behavioral effects, but it can be an important target for adolescent health prevention and intervention.” Says Merikangas.


Light pollution can cause insomnia in older people


For more information:
Paksarian, D., Rudolph, KE, Stapp, EK, Dunster, GP, He, J., Mennitt, D., Hatar, S., Casey, JA, James, P., Merikangas, KR Outdoor Artificial Light Association USA Night with mental disorders and sleep patterns among young people. JAMA Psychiatry (2020). DOI: 10.1001 / jamapsychiatry.2020.1935

Quote: Outdoor lights linked to teens sleep and mental health (8 July 2020) (8 July 2020, https: //medicalxpress.com/news/2020-07-outdoor-linked- (obtained from teens-mental-health.html)

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