Agriculture
Making the most of a meal
Earth-Friendly Fabrics
Getting the dirt on carbon
Amphibians
Newts
Bullfrogs
Poison Dart Frogs
Animals
Elephant Mimics
Hot Pepper, Hot Spider
G-Tunes with a Message
Behavior
Primate Memory Showdown
Newly named fish crawls and hops
A Recipe for Happiness
Birds
Flamingos
Cranes
Penguins
Chemistry and Materials
Toxic Dirt + Avian Flu = Science Fair Success
Earth-Friendly Fabrics
Picture the Smell
Computers
Look into My Eyes
Computers with Attitude
The Shape of the Internet
Dinosaurs and Fossils
South America's sticky tar pits
Tiny Pterodactyl
Feathered Fossils
E Learning Jamaica
Results of GSAT are in schools this week
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
2014 GSAT Results for Jamaican Kids
Earth
Ice Age Melting and Rising Seas
Greener Diet
Unnatural Disasters
Environment
The Wolf and the Cow
Fishing for Fun Takes Toll
Shrinking Fish
Finding the Past
Of Lice and Old Clothes
Writing on eggshells
A Plankhouse Past
Fish
Mako Sharks
Electric Eel
Swordfish
Food and Nutrition
Yummy bugs
Strong Bones for Life
Allergies: From Bee Stings to Peanuts
GSAT English Rules
Finding Subjects and Verbs
Adjectives and Adverbs
Subject and Verb Agreement
GSAT Exam Preparation Jamaica
GSAT Practice Papers | GSAT Mathematics | Maths
The Annual GSAT Scholarships
Ministry of Education Announces 82 GSAT Scholarships for 2010
GSAT Exams Jamaica Scholarships
Results of GSAT are in schools this week
Access denied - Disabled boy aces GSAT
2014 GSAT Results for Jamaican Kids
GSAT Mathematics
Monkeys Count
Math Naturals
Math of the World
Human Body
The tell-tale bacteria
Running with Sneaker Science
From Stem Cell to Any Cell
Invertebrates
Insects
Scorpions
Squid
Mammals
Gerbils
Prairie Dogs
African Elephants
Parents
Choosing a Preschool: What to Consider
Children and Media
What Not to Say to Emerging Readers
Physics
Dreams of Floating in Space
Spin, Splat, and Scramble
Thinner Air, Less Splatter
Plants
Tracking the Sun Improves Plant Pollen
White fuzzy mold not as friendly as it looks
Stalking Plants by Scent
Reptiles
Boa Constrictors
Lizards
Chameleons
Space and Astronomy
A Planet's Slim-Fast Plan
Burst Busters
A Planet from the Early Universe
Technology and Engineering
Squeezing Oil from Old Wells
A Clean Getaway
Space Umbrellas to Shield Earth
The Parts of Speech
Adjectives and Adverbs
Pronouns
What is a Noun
Transportation
Ready, unplug, drive
Where rivers run uphill
Troubles with Hubble
Weather
Arctic Melt
Earth's Poles in Peril
In Antarctica watch the heat (and your step)
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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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