Agriculture
Vitamin D-licious Mushrooms
Springing forward
Where Have All the Bees Gone?
Amphibians
Bullfrogs
Toads
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Animals
Crocodile Hearts
Ultrasonic Frogs Raise the Pitch
Ant Invasions Change the Rules
Behavior
Meet your mysterious relative
Homework blues
Storing Memories before Bedtime
Birds
Ducks
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Chemistry and Materials
Atom Hauler
Sticky Silky Feet
Batteries built by Viruses
Computers
Middle school science adventures
Batteries built by Viruses
The Earth-bound asteroid scientists saw coming
Dinosaurs and Fossils
Some Dinos Dined on Grass
Mini T. rex
An Ancient Spider's Web
E Learning Jamaica
Results of GSAT are in schools this week
2014 GSAT Results for Jamaican Kids
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Earth
Science loses out when ice caps melt
Rodent Rubbish as an Ice-Age Thermometer
A Great Quake Coming?
Environment
Improving the Camel
Pollution Detective
Snow Traps
Finding the Past
Words of the Distant Past
Of Lice and Old Clothes
Early Maya Writing
Fish
Tuna
A Jellyfish's Blurry View
Hammerhead Sharks
Food and Nutrition
Allergies: From Bee Stings to Peanuts
Turning to Sweets, Fats to Calm the Brain
Healing Honey
GSAT English Rules
Capitalization Rules
Problems with Prepositions
Finding Subjects and Verbs
GSAT Exam Preparation Jamaica
Scotiabank Jamaica Foundation Grade Six Achievement Test (GSAT) Scholarships
The Annual GSAT Scholarships
GSAT Scholarship
GSAT Exams Jamaica Scholarships
Access denied - Disabled boy aces GSAT
GSAT Exam Preparation
2014 GSAT Results for Jamaican Kids
GSAT Mathematics
Math of the World
How to Slice a Cake Fairly
A Sweet Advance in Candy Packing
Human Body
Football Scrapes and Nasty Infections
A Sour Taste in Your Mouth
Opening a Channel for Tasting Salt
Invertebrates
Horseshoe Crabs
Bees
Insects
Mammals
Narwhals
Spectacled Bear
Bobcats
Parents
Children and Media
How children learn
Raise a Lifelong Reader by Reading Aloud
Physics
The Mirror Universe of Antimatter
Gaining a Swift Lift
Extra Strings for New Sounds
Plants
Sweet, Sticky Science
Fungus Hunt
A Giant Flower's New Family
Reptiles
Garter Snakes
Black Mamba
Geckos
Space and Astronomy
Melting Snow on Mars
Solving a Sedna Mystery
Witnessing a Rare Venus Eclipse
Technology and Engineering
Supersuits for Superheroes
A Light Delay
Beyond Bar Codes
The Parts of Speech
What is a Noun
Pronouns
What is a Preposition?
Transportation
Revving Up Green Machines
Troubles with Hubble
Robots on the Road, Again
Weather
In Antarctica watch the heat (and your step)
A Dire Shortage of Water
Earth's Poles in Peril
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Sun Screen

When summer comes, I get sun crazy. I like to eat on the patio and lie on the beach. I walk and bike everywhere. I even bring my work outside. Soaking up the sun feels so good—as long as I'm wearing sunscreen and a hat. When I was younger, I played in the sun without worry. Now that I'm 30, I realize how important it is to protect myself. That's because the same ultraviolet (UV) rays that make us warm and tan also harm the cells in our skin. You can't see the damage when you're young, but its effects often show up decades later. After years of tanning, the skin gets wrinkled, leathery, and, worst of all, prone to skin cancer. The disease is directly linked to UV exposure, says Mandeep Kaur. She's a dermatologist at Wake Forest University School of Medicine in Winston-Salem, N.C. As young people flock to beaches and tanning salons, skin cancer is becoming more common and appearing at younger ages, Kaur says. "We used to see only older and middle-aged people with skin cancer," she says. "These days, we see people in their 20s or 30s." Tanning dangers Kaur and her colleagues reviewed a large number of studies about skin cancer and UV light. The disease, they found, is the most rapidly growing cause of cancer deaths in the United States. Even so, doctors rarely warn their young patients about the dangers of tanning. What your doctor should tell you is that your skin is the largest organ in your body. It keeps your stomach and other organs from spilling out. And it keeps germs from getting in. Skin allows you to feel pain, heat, cold, and other sensations. And through sweat, it rids your body of extra water and salt. Can you imagine life without it? Although our skin works hard to protect us, few people work to protect it. The sun's UV rays are the biggest threat because they damage the genetic material DNA in the cells of your skin. Damaged, or mutated, cells are supposed to kill themselves, but sun-damaged skin cells eventually become cancerous and multiply out of control. They produce abnormal growths called tumors. The tricky thing is that this process can take 30 or more years to become evident. "It's surprising how long it takes," says Meenhard Herlyn, a tumor biologist at the Wistar Institute in Philadelphia. "Even if kids have big, blistering sunburns every summer, they're fine while they're kids." Skin cancer There are two categories of skin cancer. Nonmelanoma tumors develop in the outermost layer of skin. They usually appear on the head, neck, and other exposed areas. There are about 1 million new cases of nonmelanoma in the United States each year, according to the American Cancer Society. Doctors can easily remove most of these cancers if they catch them early. The second type of skin cancer is melanoma. It is less common than nonmelanoma cancer. There are only 60,000 new cases a year in this country. However, melanoma is far more likely to spread to other organs and become deadly. Melanoma affects the cells in your skin that produce pigment, or color, that makes you tan. These cells are most active when you're young, so getting sunburns during childhood puts you at especially high risk. "If you have more than five blistering sunburns while you're under 15," Herlyn says, "it increases your risk for getting melanoma three- to fivefold." All types of skin cancer occur most often in people who have red or blonde hair, freckles, or pale skin that burns easily. People with naturally dark skin rarely get skin cancer. Skin cancer treatment usually involves surgery to remove damaged cells, but new approaches are in the works. The most promising leads come from studies of internal signals that cancer cells use to stay alive. "We're slowly getting to know what makes melanoma cells tick," Herlyn says. If researchers can block the important signals with drugs, the bad cells might die. Herlyn's coworkers, for example, are working on a melanoma vaccine that would help a patient's immune system recognize and attack skin cancer cells. Other scientists are creating lotions that could help cells repair themselves. Sunning safely The best way by far to fight skin cancer is to not get it in the first place. That doesn't mean you have to stay inside all the time. You just have to learn how to be sun savvy. The American Academy of Dermatology recommends wearing sunscreen (SPF 15 or higher), sunglasses, wide-brimmed hats, long-sleeved shirts, and long pants whenever possible. Avoid direct sunlight when it's at its strongest—between 10 a.m. and 4 p.m. Be careful near snow, sand, and water, which create strong reflections. And avoid tanning beds. These steps may seem extreme if you live in a place where tanned skin is considered attractive. But if you want a wrinklefree, cancerfree future, it may be time to think about the cost of "beauty" that doesn't last. "If you want to be healthy," Kaur says, "you have to have good skin."

Sun Screen
Sun Screen








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