light therapy

2 articles with this tag

Light therapy is a treatment that involves exposure to artificial light that mimics natural sunlight. It is often used to help regulate sleep patterns and improve sleep quality by influencing the body's circadian rhythm. By using light therapy, individuals can adjust their internal clocks, making it easier to fall asleep and wake up at desired times. This therapy is particularly beneficial for those suffering from sleep disorders such as insomnia or delayed sleep phase syndrome, as it helps to reset the body's natural sleep-wake cycle, leading to better overall sleep.

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June 3, 2026

Morning Sunlight Cuts Sleep Onset Time and Advances Circadian Rhythm

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A four-week study published in the Journal of Sleep Research found that consistent morning outdoor light exposure advanced circadian timing, shifted melatonin onset earlier, and improved sleep efficiency in healthy adults.

April 28, 2025

The Science of Light and Sleep: How Illumination Shapes Our Rest

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Light, whether natural or artificial, interacts with the brain’s suprachiasmatic nucleus (SCN) to synchronize these rhythms with the 24-hour day. This article explores the scientific evidence behind light’s impact on sleep, from daily light exposure to extreme seasonal variations in places like northern Scandinavia, and offers actionable advice for optimizing sleep through light management.