“Shedding Light on Light”: A Review on the Effects on Mental Health of Exposure to Optical Radiation

Bertani, Davide; Novellis, Antonella Maria Pia De; Farina, Riccardo; Latella, Emanuela; Meloni, Matteo; Scala, Carmela; Valeo, Laura; Galeazzi, Gian Maria; Ferrari, Silvia

doi:10.3390/ijerph18041670

Cited by 11 publications

(9 citation statements)

References 154 publications

(157 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, our results have shown that under lower concentrations of UVB exposure (for at least 1 year, including UVB low level and UVB moderate level), the risk of UVB for depression is reduced. These results are similar as previous studies [ 63 , 64 ]. In keratinocytes, UVB light stimulates ROS production.…”

Section: Discussionsupporting

confidence: 94%

Association between Ultraviolet B Exposure Levels and Depression in Taiwanese Adults: A Nested Case–Control Study

Luo

Chen

Chiang

et al. 2022

IJERPH

View full text Add to dashboard Cite

Depression is a common mental disorder that affects more than 264 million people worldwide. Anxiety, diabetes, Alzheimer’s disease, myocardial infarction, and cancer, among other disorders, are known to increase the risk of depression. Exposure to ultraviolet B (UVB) can cause human serotonin levels to increase. The vitamin D pathway is one mechanism through which ultraviolet light absorbed through the skin can affect mood; however, UVB exposure is known to increase the risk of cancer. In this study, we explored the effects of prolonged exposure to UVB on depression. Data were retrieved from the Taiwan National Health Insurance Research Database for 2008 to 2013. Each patient with depression was matched 1:4 with a comparison patient by sex and age (±5 years); thus, the study included 23,579 patients with depression and 94,316 healthy controls for comparison. The patients had been exposed to UVB for at least 1 year to observe the cumulative effect of UVB exposure. Based on the World Health Organization UV index, we divided the observation period data into five UV levels: low, moderate, high, very high, and extreme. A multivariate Poisson regression model was used to assess the risk of depression according to UVB exposure level, adjusting for sex, age, income, urbanization level, month, and comorbidities. The results revealed that the incidence rate ratio (IRR) for patients with depression was 0.889 for moderate levels (95% CI 0.835–0.947), 1.134 for high levels (95% CI: 1.022–1.260), 1.711 for very high levels (95% CI: 1.505–1.945), and 2.785 for extreme levels (95% CI: 2.439–3.180) when compared to low levels. Moderate levels of UVB lowered the risk of depression, while high levels of UVB gradually increased the risk. We propose that UVB at normal concentrations can effectively improve depression. However, exposure to high concentrations of UVB damage DNA results in physical diseases such as skin cancer, which increase the risk of depression.

show abstract

Section: Discussionsupporting

confidence: 94%

Association between Ultraviolet B Exposure Levels and Depression in Taiwanese Adults: A Nested Case–Control Study

Luo

Chen

Chiang

et al. 2022

IJERPH

View full text Add to dashboard Cite

show abstract

“…No evidence that light exposure improves mental health Exposure to bright light is a well-established therapy for seasonal depression 32 and some previous research has found 31 that mental wellbeing is generally associated with light exposure. We investigated this pattern by considering the possible patterns of confounding in a cross-sectional observational sample such as Hungarostudy 2021.…”

Section: Chronotype and Healthmentioning

confidence: 99%

“…A third factor connecting the timing of daily activities to specifically mental health outcomes is exposure to natural light 31 . Light therapy is a widely used intervention to treat depression 32 , but some research indicates that more exposure to natural light is associated with better mental health outcomes even in normal populations [33][34][35] .…”

Section: Introductionmentioning

confidence: 99%

Daily rhythms, demographics and health: findings from a nationally representative survey

Ujma

Horváth

Bódizs

2023

Preprint

View full text Add to dashboard Cite

The timing of daily activity in humans have been associated with various demographic and health-related factors, but the possibly complex patterns of confounding and interaction between these has not been systematically explored. We use data from Hungarostudy 2021, a nationally representative survey of 7000 Hungarians to assess the relationship between self-reported chronotype, social jetlag (using the Munich Chronotype Questionnaire), demographic variables and self-reported health and demographic variables, including ethnic and sexual minority membership. Supporting the validity of self-reports, participants with later chronotypes reported the lowest daytime sleepiness at a later clock time. We found that older age, female sex, a more eastward and southward geographical position, residence in a smaller settlement, less education and income, religiousness and cohabiting with small children were associated with an earlier chronotype. Younger age, higher education and income, and cohabiting with small children were associated with increased social jetlag. Of the 48 health-related variables surveyed, the relationship with both chronotype and social jetlag were mostly accounted for by age, sex, and socioeconomic effects, but we identified alcohol consumption, smoking, and physical activity as predictors of both social jetlag and chronotype, while a number of disorders were either positively or negatively associated with chronotype and social jetlag. Our findings from a large, nationally representative sample indicate that both biological and social factors influence chronotype and identified both demographic and health-related variables as risk factors for social jetlag. Our results, however, do not support a causal relationship between light exposure and mental health.

show abstract

“…It is known that electromagnetic radiation of various ranges can have both negative and positive effects on a human organism, in particular, on the nervous and the cardiovascular systems, as well as on the immune and endocrine systems and other internal organs and functional systems [1][2][3][4][5][6] . The aim of this work is to study, using an Automated pulse diagnostic system (APDS), the quantitative effect of optical radiation of the two extreme colors of the optical range (red and blue) on the functional state of the human internal organs in order to continue developing technologies for managing human mental and physiological state 6,7 .…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic effects on the functional state of individual organs and systems of the human body

Boronoev,

Pupysheva,

Ompokov

et al. 2023

29th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics

View full text Add to dashboard Cite

A change in the frequency spectrum of a person's pulse under the influence of light of different wavelengths has been established. It has been shown that in the light stimulation phase, different colors cause functional changes in the internal organs in the subjects. At the same time, the effects of the photostimulus on the internal organs are not equivalent and depend on the initial functional state and the typology of the subject. Depending on the type of exposure, the same photostimulus can cause contrasting changes in the frequency parameters of pulse signals recorded on the radial arteries of human wrists.

show abstract

“Shedding Light on Light”: A Review on the Effects on Mental Health of Exposure to Optical Radiation

Cited by 11 publications

References 154 publications

Association between Ultraviolet B Exposure Levels and Depression in Taiwanese Adults: A Nested Case–Control Study

Association between Ultraviolet B Exposure Levels and Depression in Taiwanese Adults: A Nested Case–Control Study

Daily rhythms, demographics and health: findings from a nationally representative survey

Electromagnetic effects on the functional state of individual organs and systems of the human body

Contact Info

Product

Resources

About