Source: blog

Seedlings Started Under Lights vs. On A Windowsill

“In early February I started some broccoli seeds the way I normally do, under a bank of full spectrum florescent light tubes. At the same time, using the same seeds, the same seed potting mix, and an identical pot (a 6-cell starter tray of 72-sized-cells), I started some broccoli seeds for a friend. She took her seeded pot home and put it immediately on the windowsill of a bright, south-facing window. About a month later, on March 8th, we compared our results. ”

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Comments: It’s always good to see the results of experiments that look into the value of full-spectrum lights. Here we can see that in winter conditions, full-spectrum lights make a big difference to the growth rates of seedlings. Have you thought about getting a headstart on your spring garden?

Source: blog

Italian village builds its own sun

“Who could live in a town that never sees a breath of sunlight? Viganella, a remote village of German Buddhists in northern Italy, has long experienced such a plight. Located deep in a valley, the little community resides at such a point that from mid-November to early February each year, the residents never see the sun’s direct glow ”

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Comments: All we can say on reviewing this article – if you have regular access to sunlight, you don’t know how lucky you are!

Source: Doctor Tipster

New SAD Treatment – Shining Light Into The Brain Through The Ears

“The effectiveness and exact mechanism of this light-treatment was not fully understood until now, until researchers from Oulu, Finland, found that the central role was not played by the retina. Instead the light acts on light-sensitive proteins on the brain’s surface. Special earphones were designed that shine a beam of light through the ear canal to a light-sensitive area in the brain, this being an efficient alternative to light therapy.”

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Comments: We have looked into the role of light in keeping SAD at bay before. In this article they explore whether it needs to be accessed through the eyes or whether there are other mechanisms that allow it to act.

Source: Ignite

Do you know what motivates your staff?

“Most people in the technology industry are generally considered smart, and highly skilled in math, logic and problem solving. However, these highly developed technical skills usually come at the expense of their interpersonal skills. IT managers are not immune to this imbalance and spend little time to improve these under developed skills. Making matters worse, we recognize and promote based on results and reward for performance. The consequence is that managers spend 95% of their time focusing on measurable items and pay little attention to the emotions of their staff. This is not because managers don’t like people or don’t care, but few of them have little idea what employees really want from a boss.

…Make the work space look better; get rid of office clutter (cables, computer equipment, books, files, etc.), get some plants, find local schools for art, replace lighting with full spectrum light bulbs and use creative ways to make the environment better.”

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Comments: There is a lot to managing and motivating others. We were pleased to see that the light quality of a work environment was taken into consideration when looking into this subject. We recommend that you do the same, when looking at ways to motivate your staff.

Source: Psychology Today:
 
What Can Pose a Greater Cancer Risk than Smoking?
A recent study published in the British Medical Journal (online) raised questions about sleeping pills. The careful work that was done on this study demonstrates a strong link between sleeping pills and mortality (medical lingo for death), particularly from cancer.
 
…Clearly other strategies need to be looked at the provide relief for sleep. The authors say cognitive behavioral therapy is the way to go — it’s what’s called sleep hygiene. One key is getting up at the same time every day until eventually your body forces you to go to sleep earlier. Other strategies include making changes to your sleeping environment, light therapy (getting full-spectrum light early in the morning) and using relaxation strategies before sleep or upon awaking in the middle of the night.
 
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Comments: This article looks in depth at the downside of taking sleeping pills. Given they see a strong negative to taking them, we think it is right of the authors to then focus on what alternatives there are. We recommend reading this for their emphasis on the value of sleep hygiene.
 
 

Source: Slashdot

Title Aging Eyes Blamed For Seniors’ Health Woes

Dr. Martin Mainster has written extensively about the effects of the aging eye on health, estimate that by age 45, the photoreceptors of the average adult receive just 50 percent of the light needed to fully stimulate the circadian system, by age 55, it dips to 37 percent, and by age 75, to a mere 17 percent and recommend that people should make an effort to expose themselves to bright sunlight or bright indoor lighting when they cannot get outdoors and have installed skylights and extra fluorescent lights in their own offices to help offset the aging of their own eyes.

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Comments: Many of us do not realise that our requirements for light change as we get older. For those planning the lighting for a house for the elderly, they would do well to pay attention to the statistics given above and ensure that sufficient light is available.

Source: Detroit Free Press

Title Hotel horror: Mirror, mirror, who’s that in my bathroom?

Gray skin, haggard wrinkles and bags under the eyes. It’s like watching a horror movie, except it’s me. What kind of sadist puts overhead fluorescent lights in a hotel bathroom to terrify the guests?

At least install lights on both sides of the sink, not above. Use regular incandescent lights, or halogen lights, or indirect lights, or LED lights, or at least those full-spectrum, natural daylight fluorescents instead of those glaring, hideous old-fashioned models.

Hotel managers, I will tell you why you must invest in this. A hotel guest who thinks he or she looks good is a happy guest. Happy guests complain less. Happy guests leave better tips. Happy guests will probably come back.

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Comments: This author is observant enough to notice the difference in light quality in the hotels she has stayed. Her point – don’t make clients suffer through cheap inferior lighting, they’ll be happier if they have full-spectrum light available. Next time you stay in a hotel – take a note and see what you notice.

Source: Webvision

Title Jumping Spiders Use Image Defocusing For Depth Perception

The experiment was one of those experiments that is elegant in its simplicity. When using just green light to illuminate prey, the spiders were always accurate in their strikes, just light in full spectrum light. However, when green light was excluded and red light exclusively was used to illuminate prey, the spiders attacks on prey were typically short.

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Comments: While nominally about how spiders hunt, we were interested in this article for the information contained on how the eyes of one particular species have evolved to take advantage of different spectrum within the light we see and how they are disadvantaged when even one colour is removed from their available light spectrum. And to think we see all those options as simply white.

Source: 8 Limbs Yoga Blog

Title Seasonal Vinyasa Yoga for Winter

The main intention behind my winter seasonal vinyasa practices is to help you ward off typical Kapha imbalances by raising your core temperature, enhancing your metabolism, and increasing your circulation and spirit by offering you dynamic, invigorating, rhythmic sequences that keep the earth and water from going out of balance.

…

Also, try eating less to keep your digestive fire bright, supplementing your diet with vitamin D, omitting sugar and alcohol to reduce mood swings, enjoying a hot bath, sitting by a fire, or spending five to ten minutes in a tanning bed or in front of full-spectrum light bulbs. These are just a few alternative ways to move you towards sukkha, and away from suffering, or dukkha, during this dark season.

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Comments: This author covers more than just the practice of the asanas (exercises) in how yoga can be incorporated into your life. We are especially interested in the discussion of how light is incorporated into a yoga practice over winter.

Source: MindBodyGreen – your guide to wellness

Title: 5 Tips to Get Your Body Rhythm Back

Do you feel like you’re out of sync? Here are some tips to help get your rhythm back…

Tip 3: Make sure you get natural light. Just as we need darkness to support our sleep cycles, we need light — particularly morning sun- for our day cycles. We need the light of the sun to trigger our metabolism, alertness and overall ability to function and perform. And if you spend most of your day indoors, replace your artificial or fluorescent lights with full-spectrum light bulbs.

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Comments: This article by Dr Frank Lipman covers five different areas you can work on to get your body into it’s unique rhythm. If you have problems sleeping or any other problem that is caused by your circadian rhythm being out of sync, then we recommend you take the time to read the full article and implement some of his tips.

Related articles

• Aging Eyes Blamed For Seniors’ Health Woes (science.slashdot.org)