Have you ever seen a sickle? It's a farm tool with a curved, sharp edge for cutting wheat. Sickle cell anemia (say: uh-nee-mee-uh) is a disease of the blood. It gets its name because a person's red blood cells are shaped like sickles, or crescent moo...
Have you ever seen a sickle? It's a farm tool with...
Don't you love swimming in a cool, blue pool? Splashing around in that clear water, floating like a lily pad, swimming like a shark. But imagine if the water wasn't clear or clean. What if it was filled with leaves, dirt, hair, and drowned bugs? Yeee...
Don't you love swimming in a cool, blue pool? Spla...
Q: What do you do five to six times a day but never think twice about? A: Pee! But if you have a urinary tract infection, or UTI, you're probably thinking about peeing quite a lot. Why? Because it stings when you go — yow! You also might have the f...
Q: What do you do five to six times a day but neve...
When you're hungry, your stomach lets out a growl or two. When you run around, your heart lets you know it's really working by boom, boom, booming! But some important body parts are quiet as a whisper. Psst — we're talking about your kidneys. What Ar...
When you're hungry, your stomach lets out a growl ...
Problems Learning and Functioning There's a kid at school who seems different. You've heard people say he's "retarded," but you've also heard people use that word to make fun of each other. Mental retardation (say: ree-tar-day-shun) is a term that wa...
Problems Learning and Functioning There's a kid at...
Tilt your head back a bit and look in the mirror. Do you see the way your nose connects to your upper lip? Now open your mouth. Do you see the seam on the roof of your mouth? Sometimes you can feel it with your finger or your tongue. That's where you...
Tilt your head back a bit and look in the mirror. ...
What exactly is the West Nile virus? And why is everyone talking about mosquitoes? Even though it was discovered all the way back in 1937 in Africa, the West Nile virus probably didn't make its way to the United States until 1999. But since then, it ...
What exactly is the West Nile virus? And why is ev...
Your dream finally came true . . . it was announced on the radio and on TV . . . it's a snow day! School's closed for the whole day, and that means it's time for one thing: going outside to have fun in the snow. Or maybe you're getting ready go on a ...
Your dream finally came true . . . it was announce...
If you've ever played outside, chances are you've been bugged by insects or other crawly creatures. Maybe unwelcome ants joined you at a picnic in the park or a bee buzzed around your head while you were playing catch. None of this may have bothered ...
If you've ever played outside, chances are you've ...
The weather is warming up, the days are longer and there's more time to be outside doing all kinds of fun things! But if you're going to be out in the sun, especially on a hot day, you need to stay safe. Let's find out how. Don't Feel the Burn Even t...
The weather is warming up, the days are longer and...
If you're like a lot of kids, you probably spend time sitting at the computer, doing schoolwork or playing games. But whether you're writing a report about aardvarks or zapping aliens, using a computer can be tough on your body. How? Sitting for a lo...
If you're like a lot of kids, you probably spend t...
When it's hot outside and you've been sweating, you get thirsty. Why? Thirst can be a sign of dehydration (say: dee-hye-DRAY-shun). Dehydration means that your body doesn't have enough water in it to keep it working right. A person gets water by drin...
When it's hot outside and you've been sweating, yo...
If you have a nut allergy, you need to talk to your doctor about what foods to avoid. Some people who are allergic to tree nuts (like almonds, cashews, and walnuts) are also allergic to coconut. But others are not. So talk to your doctor to see if co...
If you have a nut allergy, you need to talk to you...
Did a bug ever fly in your mouth? Usually, the story ends there. You spit it out. Goodbye, bug. But sometimes — gulp! — you might swallow it so it ends up in your stomach. Less often, someone might inhale a bug into the lungs. You have probably heard...
Did a bug ever fly in your mouth? Usually, the sto...
What's a Tick? tick is part of the arachnid family, which also includes mites, spiders, and scorpions. A tick attaches itself to the skin of an animal and sucks blood. There are hundreds of kinds of ticks on the planet, and they can be found almost e...
What's a Tick? tick is part of the arachnid family...
Why play sports? You might say "to get exercise" and you'd be right. To have fun? That's true, too. But there's more. In fact, there are at least 5 more reasons. According to the Women's Sports Foundation, girls who play sports get a lot more than ju...
Why play sports? You might say "to get exercise" a...
Recommended dietary allowances, or RDAs, for protein are the same for boys and girls until age14, but teenage boys require more protein than teen girls. However, individualized protein needs are based on body weight. Since boys usually weigh more tha...
Recommended dietary allowances, or RDAs, for prote...
Babies love to explore the world with their mouths and enjoy tasting everything from bugs to bananas. While learning to eat and try new foods is an important part of childhood development, there are a few things you should avoid giving your child unt...
Babies love to explore the world with their mouths...
Preschoolers are sometimes picky eaters, going on food jags and eating the same few foods over and over again. They may only like foods that are certain colors or textures. While this is normal and you shouldn't force your child to eat any particular...
Preschoolers are sometimes picky eaters, going on ...
Boys and men require proper nutrition to stay healthy and maintain an ideal body weight. However, Weight-control Information Network reports that about 74 percent of men and 33 percent of boys in the U.S. are overweight or obese. Making calories coun...
Boys and men require proper nutrition to stay heal...
As your baby reaches the 14-month mark, she will eat considerably less food than she did when she was younger, which can make it tough to ensure that she is getting the nutrition she needs. Toddlers often don't eat as much as babies do because their ...
As your baby reaches the 14-month mark, she will e...