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Got Milk? How?
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A Tongue and a Half
Little Beetle, Big Horns
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Giving Sharks Safe Homes
The Electric Brain
Supersonic Splash
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These gems make their own way
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Hitting the redo button on evolution
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2014 GSAT Results for Jamaican Kids
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Groundwater and the Water Cycle
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Sky Dust Keeps Falling on Your Head
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City Trees Beat Country Trees
A Vulture's Hidden Enemy
Finding the Past
Salt and Early Civilization
Of Lice and Old Clothes
Ancient Art on the Rocks
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A Grim Future for Some Killer Whales
Trout
Electric Ray
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The Essence of Celery
A Pepper Part that Burns Fat
Packing Fat
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Tarrant High overcoming the odds
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Setting a Prime Number Record
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Tapeworms and Drug Delivery
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Moose
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The Surprising Meaning and Benefits of Nursery Rhymes
Raise a Lifelong Reader by Reading Aloud
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Gaining a Swift Lift
Project Music
Spin, Splat, and Scramble
Plants
Hungry bug seeks hot meal
Underwater Jungles
Cactus Goo for Clean Water
Reptiles
Black Mamba
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Gila Monsters
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Older Stars, New Age for the Universe
A Smashing Display
Holes in Martian moon mystery
Technology and Engineering
Switchable Lenses Improve Vision
Young Scientists Take Flight
Riding Sunlight
The Parts of Speech
What is a Verb?
Problems with Prepositions
What is a Noun
Transportation
Revving Up Green Machines
Reach for the Sky
Middle school science adventures
Weather
Polar Ice Feels the Heat
In Antarctica watch the heat (and your step)
A Change in Climate
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Walking to Exercise the Brain

Do you think sitting and studying all the time will improve your grades? Think again. Getting some exercise may help, too. New research with older people suggests that taking regular walks helps them pay attention better than if they didn't exercise. Previous research had shown that mice learn, remember, and pay attention better after a few weeks of working out on a running wheel. Mice that exercise have greater blood flow to the brain than those who don't. Their brain cells also make more connections. Neuroscientists from the University of Illinois at Urbana-Champaign wanted to find out if the same thing is true for people. First, they measured the physical fitness of 41 adults, ages 58 to 77, after each person walked 1 mile. Then, participants looked at arrows on a computer screen and had to use computer keys to show which way one particular arrow was pointing. Adults who were physically fit were faster at the arrow task, and their answers were just as accurate as their less-fit peers, the researchers found. The fitter participants also had more blood flow to a part of their brain responsible for paying attention and making decisions. In a second study, 15 elderly people who completed a 6-month aerobic-training course were faster at attention tasks compared with 14 seniors who just did stretching and toning exercises for the same amount of time. So, even going for a walk every 2 or 3 days for just 10 to 45 minutes can help. That should be good news for your grandparents. The effects of exercising on the brains of younger people haven't been studied yet. Still, it can't hurt to take occasional study breaks and go for a walk or run around with your friends. You might even do better in school. Whatever you do, though, don't try to read and walk at the same time. You could end up hurting yourself!E. Sohn

Walking to Exercise the Brain
Walking to Exercise the Brain








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