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sunlight

·May 26, 2025·3 min read

Daylight Boosts Immune Defense

Researchers have discovered that daylight enhances the infection-fighting power of neutrophils, the most abundant white blood cells in the body. Using transparent zebrafish, scientists observed that these immune cells contain internal circadian clocks that are activated by light, boosting their bacterial-killing ability during the day.

This shows a depressed woman sitting in a room with sunlight coming through the window.

Featured Neuroscience Psychology

·September 25, 2024·4 min read

How Sunlight Affects Depression and Activity Levels

A new study has revealed a link between sunlight exposure, physical activity, and depression using wrist-based activity sensors. Over two weeks, researchers found that individuals with depression had lower physical activity levels, especially in shorter daylight periods, compared to those without depression.

Featured Neuroscience Psychology

·August 25, 2021·5 min read

Exposure to Sunlight Enhances Romantic Passion in Humans

Exposure to ultraviolet radiation type B increases levels of romantic passion in both men and women. The study reveals sunlight exposure affects the regulation of the endocrine system responsible for the release of sexual hormones in humans.