As a parent, you want your kids to feel happy about themselves and have good self-esteem (also called a self-image). Your words and actions affect it more than anything else, starting from when ...

Utilizar un condón al mantener relaciones sexuales puede ayudar a prevenir las enfermedades de transmisión sexual (ETS) y el embarazo. Pero utilizar dos preservativos a la vez no te proporcionará ...

Puberty is the time when your body grows from a child's to an adult's. You'll know that you are going through puberty by the way that your body changes. Usually, these changes begin between the ages ...

What Is the Hib Vaccine? The Hib vaccine protects against bacteria called Haemophilus influenzae type b (Hib). These germs can cause meningitis — swelling around the brain and spinal cord — and other ...

When your child is sick or injured, it's natural to want to head straight for the emergency room (ER). You know that you can get care, no matter the time, day, or severity of your child's injury. In ...

Newborns and infants can't lift their heads well. So they can get stuck in a position that blocks their breathing, called smothering or suffocation. Young children have better head control, but still ...

What Are the Lungs and Respiratory System? The lungs and respiratory system allow us to breathe. They bring oxygen into our bodies (called inspiration, or inhalation) and send carbon dioxide out ...

An allergy (say: AL-ur-jee) is when your immune system overreacts to something harmless that it thinks is dangerous. Normally, your immune system protects you by fighting germs. But when you have ...

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 ...

Basketball is a way of life for millions of people. It's fun to play and great exercise, but it can be a contact sport and accidents may happen. It's important to know how to stay safe and prevent ...

How much do you know about your heart? Find out by taking this quiz!

If a child with an allergy is exposed to that allergen, their immune system mistakenly believes it's harming their body. It overreacts, treating the substance as an invader and trying to fight it off.