Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Randomized Controlled Trial
. 2024 Jul;23(7):1229-1238.
doi: 10.1007/s43630-024-00587-6. Epub 2024 May 15.

Influence of ultraviolet A1 exposures on mood states: a randomized controlled study

Annina Haapasalo  1   2 , Rafael Pasternack  3   4 , Hannu Kautiainen  5   6 , Lasse Ylianttila  7 , Erna Snellman  3   4   8 , Timo Partonen  9
Affiliations
Randomized Controlled Trial

Influence of ultraviolet A1 exposures on mood states: a randomized controlled study

Annina Haapasalo et al. Photochem Photobiol Sci. 2024 Jul.

Abstract

We investigated the effects of daily ultraviolet A1 (UV-A1, 340-400 nm) exposures on mood states (#R19055, approval on 21 October 2020). Based on our earlier findings of the influence of diurnal preference on mood, we investigated further whether diurnal preference plays a role in the influence of UV-A1 on mood states. Forty-one healthy participants aged 19-55 years were randomized to receive either UV-A1 (n = 21) or control (n = 20) exposures (violet light, 390-440 nm). The irradiations were administered on three consecutive mornings on the skin of the buttocks and middle back. Diurnal preference was assessed with the modified 6-item Morningness-Eveningness Questionnaire (mMEQ). Changes in mood were assessed with Total Mood Disturbance (TMD) score of the 40-item Profile of Mood States (POMS) before the first irradiation, immediately after each irradiation and one week after the last irradiation. Mood improved among those subjected to UV-A1 exposures compared with the controls (p = 0.031). Individuals with more pronounced morningness had mood improvement (p = 0.011), whereas those with more pronounced eveningness did not (p = 0.41). At follow-up of one week after the last irradiation the mood improvement had disappeared.

Keywords: Chronotype; Optical radiation; Trial; Visible light.

PubMed Disclaimer

Similar articles

See all similar articles

References

7 References

    1. D’Orazio, J., Jarrett, S., Amaro-Ortiz, A., & Scott, T. (2013). UV radiation and the skin. International Journal of Molecular Sciences, 7(14), 12222–12248. https://doi.org/10.3390/ijms140612222 - DOI
    1. Tewari, A., Grage, M. M., Harrison, G. I., Sarkany, R., & Young, A. R. (2013). UVA1 is skin deep: Molecular and clinical implications. Photochemical & Photobiological Sciences, 12, 95–103. https://doi.org/10.1039/c2pp25323b - DOI
    1. Mahmoud, B. H., Ruvolo, E., Hexsel, C. L., Liu, Y., Owen, M. R., Kollias, N., Lim, H. W., & Hamzavi, I. H. (2010). Impact of long-wavelength UVA and visible light on melanocompetent skin. The Journal of Investigative Dermatology, 130, 2092–2097. https://doi.org/10.1038/jid.2010.95 - DOI - PubMed
    1. Finlayson, L., Barnard, I. R. M., McMillan, L., Ibbotson, S. H., Brown, C. T. A., Eadie, E., & Wood, K. (2022). Depth Penetration of light into skin as a function of wavelength from 200 to 1000 nm. Photochemistry and Photobiology, 98, 974–981. https://doi.org/10.1111/php.13550 - DOI - PubMed
    1. York, N. R., & Jacobe, H. T. (2010). UVA1 phototherapy: A review of mechanism and therapeutic application. International Journal of Dermatology, 49, 623–630. https://doi.org/10.1111/j.1365-4632.2009.04427.x - DOI - PubMed

Publication types

LinkOut - more resources