Agriculture
Springing forward
Middle school science adventures
New Gene Fights Potato Blight
Amphibians
Poison Dart Frogs
Tree Frogs
Bullfrogs
Animals
Baboons Listen for Who's Tops
Big Squid
Return of the Lost Limbs
Behavior
Reading Body Language
The Colorful World of Synesthesia
Girls are cool for school
Birds
A Meal Plan for Birds
Kookaburras
Backyard Birds
Chemistry and Materials
The science of disappearing
The Incredible Shrunken Kids
The hottest soup in New York
Computers
A Light Delay
New eyes to scan the skies
The Shape of the Internet
Dinosaurs and Fossils
Dino Flesh from Fossil Bone
Meet your mysterious relative
From Mammoth to Modern Elephant
E Learning Jamaica
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Results of GSAT are in schools this week
2014 GSAT Results for Jamaican Kids
Earth
A Grim Future for Some Killer Whales
Ancient Heights
Life under Ice
Environment
Animal CSI or from Science Lab to Crime Lab
Acid Snails
An Ocean View's Downside
Finding the Past
A Long Trek to Asia
Sahara Cemetery
Preserving Ancient Warrior Paint
Fish
Halibut
White Tip Sharks
Catfish
Food and Nutrition
Eat Out, Eat Smart
Chew for Health
How Super Are Superfruits?
GSAT English Rules
Capitalization Rules
Pronouns
Problems with Prepositions
GSAT Exam Preparation Jamaica
Tarrant High overcoming the odds
Ministry of Education Announces 82 GSAT Scholarships for 2010
GSAT Practice Papers | GSAT Mathematics | Maths
GSAT Exams Jamaica Scholarships
Access denied - Disabled boy aces GSAT
42,000 students will sit for the GSAT Exam in two weeks
GSAT Scholarship
GSAT Mathematics
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Play for Science
Human Body
Spit Power
Sea Kids See Clearly Underwater
Heavy Sleep
Invertebrates
Lobsters
Bedbugs
Jellyfish
Mammals
Cougars
Minks
Oxen
Parents
Raise a Lifelong Reader by Reading Aloud
What Not to Say to Emerging Readers
Children and Media
Physics
Project Music
Black Hole Journey
Extra Strings for New Sounds
Plants
Nature's Alphabet
City Trees Beat Country Trees
Making the most of a meal
Reptiles
Cobras
Geckos
Rattlesnakes
Space and Astronomy
No Fat Stars
Ringing Saturn
World of Three Suns
Technology and Engineering
Shape Shifting
Reach for the Sky
Young Scientists Take Flight
The Parts of Speech
What is a Verb?
Problems with Prepositions
Countable and Uncountable Nouns
Transportation
Robots on the Road, Again
Ready, unplug, drive
How to Fly Like a Bat
Weather
The solar system's biggest junkyard
Science loses out when ice caps melt
Earth's Poles in Peril
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Awake at Night

The less sleep I get, the unhappier I become. When I'm really tired, I have trouble concentrating. I can't get any work done. I get cranky and irritable, and everything starts to annoy me. I know lots of people just like me, but I also have friends who can stay up all night and still seem chipper the next day. How well do you fare after a slumber-less sleepover? Scientists have been studying sleep for decades, but they still know very little about the genes involved. Genes are stretches of DNA found within every cell. They direct all sorts of processes in the body. Sleep researchers from the University of Wisconsin–Madison decided to focus on certain fruit flies (called Drosophila melanogaster) because their genes are easy to study and similar to ours. Fruit flies also sleep a lot, typically 9 to 15 hours a day. A sleeping fly looks like it's just sitting still. You can't hear the snores. The researchers collected more than 9,000 groups of fruit flies. Each group had a different set of genes. The scientists then observed several flies of each type to see how many hours a day the insects slept and how they behaved after being kept awake for 24 hours. One group of flies proved to be the most interesting. Named minisleep flies, they slept only 4 to 5 hours a day. Even after 24 hours without sleep, they did just as well on reaction tests as rested flies did. Normal sleep-deprived flies were much slower to react. After a series of tests, the scientists discovered one mutation in a single gene in the minisleep flies. As a result, these flies have nerves that appear to get excited easily. It's possible that people who don't need much sleep have a similar mutation. In every other way, minisleep flies seemed normal—except one. Most fruit flies live for about 3 or 4 months. The minisleepers lived about 2 weeks less. So, even if you feel fine on little sleep, the researchers say, skimping on sleep might affect your health in other ways. Knowing that, I'm going to make sure to sleep in tomorrow. If nothing else, I'll be a lot more pleasant to be around.—E. Sohn

Awake at Night
Awake at Night








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