What Is Hypotonic Cerebral Palsy? Cerebral palsy (CP) affects muscle movement and control. People with CP have it for life. Hypotonic CP is rarer than other types of CP. In rare cases, CP happens ...
How Does Air Enter the Respiratory System? Air enters the respiratory system through the nose or the mouth. If it goes in the nostrils (also called nares), the air is warmed and humidified. Tiny hairs ...
Sickle cell disease is a group of conditions in which red blood cells are not shaped as they should be. Red blood cells normally look like round discs. But in sickle cell disease, they're shaped like ...
When people talk about the calories in food, what do they mean? A calorie is a unit of measurement — but it doesn't measure weight or length. A calorie is a unit of energy. When you hear something ...
What's the Endocrine System? The endocrine system is made up of glands that make hormones. Hormones are the body's chemical messengers. They carry information and instructions from one set of cells to ...
We see and hear about hearts everywhere. A long time ago, people even thought that their emotions came from their hearts, maybe because the heart beats faster when a person is scared or excited. Now ...
To help your child get ready for a blood test, find out if they need to fast (not eat or drink) or should stop taking medicines before the test. Explain what to expect during the test. If your child ...
What Does the Heart Do? The heart is a pump, usually beating about 60 to 100 times per minute. With each heartbeat, the heart sends blood throughout our bodies, carrying oxygen to every cell. After ...
We've all had cuts and scrapes that we can take care of at home. But what about more serious wounds — the kind that involve stitches or a hospital stay? The deeper, larger, or dirtier a wound is, the ...
Children hear about what's going on in the world through social media, friends, or adults' conversations. Sometimes the news is uplifting — like kids their age taking a stand on social or ...
Feeling sad? You're not alone. Everyone feels sad at times. Sometimes sad feelings last only a moment. Other times, they last a little longer. It’s OK to feel sad. But sad feelings don't have to take ...
What Are Bones and What Do They Do? Bones provide support for our bodies and help form our shape. Although they're very light, bones are strong enough to support our entire weight. In this soft bone ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results