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 ...

Abuse means treating another person with violence, cruelty, hate, harm, or force. Abuse is never OK. No matter who’s doing it or where it happens. And it is never the fault of the person who is being ...

A parked car in sunny weather is like a greenhouse and heats up very quickly. Even on a mild, sunny day in the 60s, the temperature in a parked car can get dangerously high. Every summer, there are ...

It’s great to feel good about yourself. To describe this, people often use words like self-confidence or self-esteem. Feeling good about yourself doesn’t mean boasting or bragging about how great you ...

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 ...

Smoking is one of the worst things you can do to your body. Yet every single day, some kids and teens start smoking. Why? There's more than just one answer. Some kids may start smoking just because ...

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 — ...

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 ...

Quick! What's the body's biggest organ? You might be surprised to find out it's the skin, which you might not think of as an organ. No matter how you think of it, your skin is very important. It ...

What Is a Breath-Holding Spell? A breath holding spell is when a child holds their breath, usually after being angry, frustrated, startled, or in pain. Sometimes the breath holding leads to the child ...

How Can I Help My Child Manage Anxiety? Feeling nervous, worried, or uneasy at times is a normal part of growing up. Helping your child feel more in control and able to cope with stress can help ...

A lot of changes happen as you grow up, especially as you reach puberty (say: PYOO-bur-tee). This is the time when your body begins to develop and change. During puberty, there isn't just one event or ...