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      • The light exposure provided by a lightbox is thought to trigger the production of the brain chemical serotonin, in the way natural light does. Serotonin, which is often called the "feel-good" hormone, plays an essential part in the proper functioning of your mind and body, affecting mood, emotions, motor skills, and sleep.
      www.verywellmind.com/what-is-light-therapy-and-is-it-right-for-you-5097392

      What Is Light Therapy and Is It Right For You? - Verywell Mind

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  3. www.ncbi.nlm.nih.gov › pmc › articlesEffects of light on human circadian rhythms, sleep and mood

    Aug 20, 2019 · Two effects of light have been interrogated extensively in human circadian and sleep research: (1) the acute suppression of melatonin in response to light exposure and (2) the ability of light exposure to shift circadian phase.

    • Christine Blume, Christine Blume, Corrado Garbazza, Manuel Spitschan, Manuel Spitschan
    • 10.1007/s11818-019-00215-x
    • 2019
    • Somnologie (Berl). 2019; 23(3): 147-156.

  4. www.health.harvard.edu › blog › light-therapy-notLight therapy: Not just for seasonal depression? - Harvard Health

    • Why Do People Experience Sad?
    • Light Therapy May Prompt Improvement with Few Side Effects
    • How to Use Light Therapy
    • An Early Morning Walk

    SAD seems to be triggered by a drop in daily sunlight exposure. Light affects complex systems that govern the 24-hour circadian clockin the brain, which regulates not just our sleep and wake cycles but also digestion, hormonal activity, and other important bodily functions. Special receptors in the retina (the light-sensitive portion of the eye) tr...

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    For both SAD and other types of depression, light therapy has unique characteristics that make it an attractive alternative to medications, Dr. Schwartz notes. Antidepressant drugs often take several weeks to start working, and sometimes cause bothersome side effects including nausea, weight gain, and sexual dysfunction. In people who respond well ...

    See full list on health.harvard.edu

    Light therapy requires a light box that emits 10,000 lux (a measure of light intensity). You sit in front of the light for about 30 minutes every morning, as soon as possible after you wake up. Light boxes aren't regulated, so it's important to make sure you buy one that meets certain specifications. Dr. Schwartz recommends checking out the Center ...

    See full list on health.harvard.edu

    For everyone else who's feeling down or depressed — whether related to the season or pregnancy, or not — an early morning walk can offer similar light therapy benefits. A bright sunny day is about 50,000 lux, and a gray day is around 10,000 lux. "Strolling outdoors soon after sunrise, even on a cloudy day, provides almost the same amount of light e...

    See full list on health.harvard.edu

    • hhp_info@health.harvard.edu

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  6. www.ncbi.nlm.nih.gov › pmc › articlesHow Does Light Regulate Mood and Behavioral State? - PMC

    Jul 12, 2019 · Light is a powerful multifaceted stimulus; aside from supporting vision, light also affects a range of physiological and behavioral aspects. Well established among the so-called non-visual (NV) responses are circadian photoentrainment, pupillary light reflex and light regulation of sleep propensity.

    • Nina Milosavljevic
    • 10.3390/clockssleep1030027
    • 2019
    • Clocks Sleep. 2019 Sep; 1(3): 319-331.

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  8. link.springer.com › article › 10A Comprehensive Overview of the Neural Mechanisms of Light ...

    Aug 9, 2023 · In humans, light therapy can alleviate depression, promote cognitive function, and relieve pain symptoms [3, 4, 5, 6, 7, 8, 9, 10, 11, 12]. It provides a solution for the treatment of brain diseases with the advantages of non-invasiveness, few side-effects, and low cost.

  9. www.psychologytoday.com › us › blogThe Neuroscience of Light Therapy | Psychology Today

    Nov 17, 2021 · Key points. Decreased daylight is associated with depressed mood; this is called seasonal affective disorder (SAD). Light entering the eye affects SAD, but the brain pathways involved do not...

  10. www.verywellmind.com › what-is-light-therapy-andWhat Is Light Therapy and Is It Right For You? - Verywell Mind

    Dec 4, 2023 · Researchers aren't entirely sure how or why light therapy works, but studies show that the treatment does offer relief of symptoms for many people. The light exposure provided by a lightbox is thought to trigger the production of the brain chemical serotonin , in the way natural light does.

  11. www.nature.com › articles › s41583/023/00788-5The cognitive impact of light: illuminating ipRGC circuit ...

    Jan 26, 2024 · Exposure to light stimulates brain areas involved in cognition and appears to improve a broad range of cognitive functions. However, the extent of these effects and their mechanisms are...

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