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April 21, 2014

Andrew Silow-Carroll: Passoverkill? Suggestions to make next year's seders even more culturally sensitive

Sara Israelsen Hartley: Seeking the Divine: An ancient connection in a new context

Christine M. Flowers: Priest's execution in Syria should be call to action

Courtnie Erickson: How to help kids accept the poor decisions of others

Lizette Borreli: A Glass Of Milk A Day Keeps Knee Arthritis At Bay

Lizette Borreli: 5 Health Conditions Your Breath Knows Before You Do

The Kosher Gourmet by Betty Rosbottom Coconut Walnut Bars' golden brown morsels are a beautifully balanced delectable delight

April 18, 2014

Rabbi Yonason Goldson: Clarifying one of the greatest philosophical conundrums in theology

Caroline B. Glick: The disappearance of US will

Megan Wallgren: 10 things I've learned from my teenagers

Lizette Borreli: Green Tea Boosts Brain Power, May Help Treat Dementia

John Ericson: Trying hard to be 'positive' but never succeeding? Blame Your Brain

The Kosher Gourmet by Julie Rothman Almondy, flourless torta del re (Italian king's cake), has royal roots, is simple to make, . . . but devour it because it's simply delicious

April 14, 2014

Rabbi Dr Naftali Brawer: Passover frees us from the tyranny of time

Greg Crosby: Passing Over Religion

Eric Schulzke: First degree: How America really recovered from a murder epidemic

Georgia Lee: When love is not enough: Teaching your kids about the realities of adult relationships

Cameron Huddleston: Freebies for Your Lawn and Garden

Gordon Pape: How you can tell if your financial adviser is setting you up for potential ruin

Dana Dovey: Up to 500,000 people die each year from hepatitis C-related liver disease. New Treatment Has Over 90% Success Rate

Justin Caba: Eating Watermelon Can Help Control High Blood Pressure

The Kosher Gourmet by Joshua E. London and Lou Marmon Don't dare pass over these Pesach picks for Manischewitz!

April 11, 2014

Rabbi Hillel Goldberg: Silence is much more than golden

Caroline B. Glick: Forgetting freedom at Passover

Susan Swann: How to value a child for who he is, not just what he does

Cameron Huddleston: 7 Financial Tasks You Should Tackle Right Now

Sandra Block and Lisa Gerstner: How to Profit From Your Passion

Susan Scutti: A Simple Blood Test Might Soon Diagnose Cancer

Chris Weller: Have A Slow Metabolism? Let Science Speed It Up For You

The Kosher Gourmet by Diane Rossen Worthington Whitefish Terrine: A French take on gefilte fish

April 9, 2014

Jonathan Tobin: Why Did Kerry Lie About Israeli Blame?

Samuel G. Freedman: A resolution 70 years later for a father's unsettling legacy of ashes from Dachau

Jessica Ivins: A resolution 70 years later for a father's unsettling legacy of ashes from Dachau

Kim Giles: Asking for help is not weakness

Kathy Kristof and Barbara Hoch Marcus: 7 Great Growth Israeli Stocks

Matthew Mientka: How Beans, Peas, And Chickpeas Cleanse Bad Cholesterol and Lowers Risk of Heart Disease

Sabrina Bachai: 5 At-Home Treatments For Headaches

The Kosher Gourmet by Daniel Neman Have yourself a matzo ball: The secrets bubby never told you and recipes she could have never imagined

April 8, 2014

Lori Nawyn: At Your Wit's End and Back: Finding Peace

Susan B. Garland and Rachel L. Sheedy: Strategies Married Couples Can Use to Boost Benefits

David Muhlbaum: Smart Tax Deductions Non-Itemizers Can Claim

Jill Weisenberger, M.S., R.D.N., C.D.E : Before You Lose Your Mental Edge

Dana Dovey: Coffee Drinkers Rejoice! Your Cup Of Joe Can Prevent Death From Liver Disease

Chris Weller: Electric 'Thinking Cap' Puts Your Brain Power Into High Gear

The Kosher Gourmet by Marlene Parrish A gift of hazelnuts keeps giving --- for a variety of nutty recipes: Entree, side, soup, dessert

April 4, 2014

Rabbi David Gutterman: The Word for Nothing Means Everything

Charles Krauthammer: Kerry's folly, Chapter 3

Amy Peterson: A life of love: How to build lasting relationships with your children

John Ericson: Older Women: Save Your Heart, Prevent Stroke Don't Drink Diet

John Ericson: Why 50 million Americans will still have spring allergies after taking meds

Cameron Huddleston: Best and Worst Buys of April 2014

Stacy Rapacon: Great Mutual Funds for Young Investors

Sarah Boesveld: Teacher keeps promise to mail thousands of former students letters written by their past selves

The Kosher Gourmet by Sharon Thompson Anyone can make a salad, you say. But can they make a great salad? (SECRETS, TESTED TECHNIQUES + 4 RECIPES, INCLUDING DRESSINGS)

April 2, 2014

Paul Greenberg: Death and joy in the spring

Dan Barry: Should South Carolina Jews be forced to maintain this chimney built by Germans serving the Nazis?

Mayra Bitsko: Save me! An alien took over my child's personality

Frank Clayton: Get happy: 20 scientifically proven happiness activities

Susan Scutti: It's Genetic! Obesity and the 'Carb Breakdown' Gene

Lecia Bushak: Why Hand Sanitizer May Actually Harm Your Health

Stacy Rapacon: Great Funds You Can Own for $500 or Less

Cameron Huddleston: 7 Ways to Save on Home Decor

The Kosher Gourmet by Steve Petusevsky Exploring ingredients as edible-stuffed containers (TWO RECIPES + TIPS & TECHINQUES)

Jewish World Review

Light beyond vision: LED bulbs might help you read, concentrate, even sleep better

By Jeff Hecht





JewishWorldReview.com | Despite their vital role, light bulbs don't often come to mind when we think of cutting-edge technology. That may be about to change, with a wave of tunable LED (light-emitting diode) bulbs that promise to not only keep out the dark, but help us concentrate, relax, read or even improve our sleeping habits.

In October, electronics company Philips launched the Hue bulb, which can be tuned using a smartphone or tablet computer to bathe a room in almost any color of light. The firm is promoting the light as a fun technology, as it comes with features such as changing color when the phone is shaken, so party hosts can put on their own light shows.

But the system, which costs around $200 and comes with three 50-watt-equivalent bulbs and a wireless hub, also has intriguing possibilities for improving the lives of its users.

Research has shown that different colors of light affect more than just our conscious vision system. A set of receptors in our eyes responds to blue light by suppressing production of sleep-inducing melatonin, so the naturally blue-rich light of daytime keeps us alert, while reddish evening light lets us ease into sleep.


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Fluorescent bulbs contain a lot of blue light, so being exposed to them late in the day or at night can contribute to sleep problems. Many LEDs bulbs perpetuate the problem, because they generate white light using blue LEDs coated in compounds that emit longer wavelengths when illuminated.

The Hue bulb instead contains red, green and blue LEDs. That's a more expensive way to generate white light, but the level of each color can be adjusted, meaning it's possible to produce a broad gamut of colors, including white mixtures that contain very little blue light.

NASA is developing similar lights for the International Space Station because astronauts have trouble sleeping more than 6 hours a night. The lights will switch from blue-rich to keep the astronauts alert during their working day to red-rich light when they are relaxing before bed.

Start-up firm LIFX is also developing a color-tunable LED system, which has generated huge interest and received significant funds through the crowd-funding website Kickstarter.

Philips' approach is based on studies of how students performed in school rooms illuminated by different types of lighting: a red-rich "relax," a blue-infused "energize," a milder, yellowish "concentrate" and a "reading" blend.

"Controlled experiments have shown that light at the right intensity and wavelength can have alerting effects and that dimmer, long-wavelength light can help prepare for sleep," says George Brainard, of Thomas Jefferson University in Philadelphia, Penn., who works on the NASA program.

Brainard has not studied the Philips system and cautions that it's hard to tell if it will provide therapeutic doses in people's homes. Nonetheless, he adds, "these are exciting frontiers for the future potential of light".

"We were looking backwards in time" by trying merely to exchange inefficient incandescent bulbs with more efficient alternatives, says Fred Schubert, at Rensselaer Polytechnic Institute in Troy, N.Y. "We can go beyond the replacement paradigm to make bulbs with new capabilities."

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