Later On

A blog written for those whose interests more or less match mine.

Help for insomnia and ADHD: blue glasses

with 4 comments


Scientists at John Carroll University, working in its Lighting Innovations Institute, have developed an affordable accessory that appears to reduce the symptoms of ADHD. Their discovery also has also been shown to improve sleep patterns among people who have difficulty falling asleep. The John Carroll researchers have created glasses designed to block blue light, therefore altering a person’s circadian rhythm, which leads to improvement in ADHD symptoms and sleep disorders.

The individual puts on the glasses a couple of hours ahead of bedtime, advancing the circadian rhythm. The special glasses block the blue rays that cause a delay in the start of the flow of melatonin, the sleep hormone. Normally, melatonin flow doesn’t begin until after the individual goes into darkness.

Studies indicate that promoting the earlier release of melatonin results in a marked decline of ADHD symptoms.

Major uses of the blue-blocking glasses include: providing better sleep, avoiding postpartum depression, preventing Seasonal Affective Disorder and reducing the risk of cancer.

An alternative to the glasses has also been developed in the form of night lights and light bulbs with coatings that block the blue light. Instead of wearing the glasses, an individual may simply turn off ordinary lights and, instead, turn on the ones with filters that remove the blue rays. The night light is a convenient “plug-in” device. The cost of the items ranges from approximately $5 for light bulbs and night lights to $40-$60 for glasses.

Written by Leisureguy

13 November 2007 at 10:22 am

Posted in Daily life, Medical, Science

4 Responses

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  1. Interesting article. I’m researching SAD for a blog tied in with a character in my novel, Wednesday’s Child.
    (Another Aquarius with a Dell.)
    Unfortunately, I have too many cats and my punctuation is far from exemplary.



    13 November 2007 at 1:24 pm

  2. You might be interested in this post. SAD is a terrible thing to have, though light therapy seems to work.

    Check out this LED lightbox. (I realize that it’s your character, not you, who suffers from SAD, but thought that others might find the info useful.)



    13 November 2007 at 1:34 pm

  3. LeisureGuy

    13 November 2007 at 1:53 pm

  4. Next-generation lighting
    Science News article
    Light and dark

    Thanks for the ADD info link.

    Don’t think you need to buy pricey stuff, blue blocking is easy to do, theatrical light filter gels work fine, for example, and the amber LED bulbs are available at half the price hyped on the sites pushing the idea; a GE cfl ‘buglight’ yellow works well too. Links I found earlier are in the above posts on how to get this stuff and where.


    Hank Roberts

    13 April 2008 at 8:35 am

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