Your doctor and/or nurse will probably: 1. Check your child's weight and height, calculate body mass index (BMI), and plot the measurements on a growth chart. 2. Check your child's blood pressure ...

Hepatitis B is a liver infection caused by the hepatitis B virus (HBV). In some people, HBV stays in the body, causing long-lasting disease and long-term liver problems. The younger someone is when ...

Doctors use certain milestones to tell if a toddler is developing as expected. There's a wide range of what's considered normal, so some children may gain skills earlier or later than others. Toddlers ...

What Does the Nose Do? A big batch of cookies coming out of the oven. Your gym bag full of dirty clothes. How do you smell these smells and thousands more? It's your nose, of course. Your nose lets ...

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 ...

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 ...

Homework takes time. But it doesn’t have to take too much time. You want time to play, relax, and do other things, too. If you learn how to get organized and get focused, then you can get it done in a ...

What Do Substance Abuse and Addiction Mean? The difference between substance abuse and addiction is very slight. Substance abuse means using an illegal substance or misusing a legal substance.

How Do I Take a Rectal Temperature? The best way to take a temperature in infants and young children is by taking a rectal temperature. Don't worry — it's a simple and safe process.

What Is a Growth Plate? Growth plates are the areas of new bone growth in children and teens. They're made up of cartilage, a rubbery, flexible material (the nose, for instance, is made of cartilage).

Pyloric stenosis is a condition that can affect the gastrointestinal tract in babies. It can make a baby vomit forcefully and often, and can lead to other problems, such as dehydration. Pyloric ...

Every single person has a skeleton made up of many bones. These bones give your body structure, let you move in many ways, protect your internal organs, and more. It's time to look at all your bones — ...