Agriculture
Protecting Cows—and People—from a Deadly Disease
Getting the dirt on carbon
Middle school science adventures
Amphibians
Frogs and Toads
Bullfrogs
Salamanders and Newts
Animals
How to Fly Like a Bat
A Grim Future for Some Killer Whales
Sea Lilies on the Run
Behavior
Flower family knows its roots
Taking a Spill for Science
Baby Number Whizzes
Birds
Quails
Dodos
Songbirds
Chemistry and Materials
Undercover Detectives
Fog Buster
Lighting goes digital
Computers
Nonstop Robot
A Classroom of the Mind
Fingerprint Evidence
Dinosaurs and Fossils
Digging for Ancient DNA
Dino Flesh from Fossil Bone
Ferocious Growth Spurts
E Learning Jamaica
2014 GSAT Results for Jamaican Kids
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Results of GSAT are in schools this week
Earth
Deep History
Watering the Air
Petrified Lightning
Environment
Out in the Cold
A Newspaper's Hidden Cost
The Birds are Falling
Finding the Past
A Big Discovery about Little People
Preserving Ancient Warrior Paint
Your inner Neandertal
Fish
Freshwater Fish
Pygmy Sharks
Mako Sharks
Food and Nutrition
Food for Life
How Super Are Superfruits?
Strong Bones for Life
GSAT English Rules
Whoever vs. Whomever
Subject and Verb Agreement
Problems with Prepositions
GSAT Exam Preparation Jamaica
Tarrant High overcoming the odds
42,000 students will sit for the GSAT Exam in two weeks
Results of GSAT are in schools this week
GSAT Exams Jamaica Scholarships
GSAT Exam Preparation
GSAT Scholarship
42,000 students will sit for the GSAT Exam in two weeks
GSAT Mathematics
Math Naturals
42,000 students will sit for the GSAT Exam in two weeks
How to Slice a Cake Fairly
Human Body
Walking to Exercise the Brain
A Sour Taste in Your Mouth
Taste Messenger
Invertebrates
Bedbugs
Crustaceans
Mollusks
Mammals
Dolphins
Foxes
Dalmatians
Parents
Choosing a Preschool: What to Consider
Raise a Lifelong Reader by Reading Aloud
What Not to Say to Emerging Readers
Physics
Powering Ball Lightning
Speedy stars
Gaining a Swift Lift
Plants
Sweet, Sticky Science
Bright Blooms That Glow
Hungry bug seeks hot meal
Reptiles
Asp
Anacondas
Pythons
Space and Astronomy
Gravity Tractor as Asteroid Mover
Tossing Out a Black Hole Life Preserver
A Galaxy Far, Far, Far Away
Technology and Engineering
Supersuits for Superheroes
A Micro-Dose of Your Own Medicine
Reach for the Sky
The Parts of Speech
What is a Preposition?
Adjectives and Adverbs
Problems with Prepositions
Transportation
Charged cars that would charge
Troubles with Hubble
Middle school science adventures
Weather
Antarctica warms, which threatens penguins
Earth's Poles in Peril
In Antarctica watch the heat (and your step)
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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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