Many young kids have bow legs (genu varum), flat feet, knock knees (genu valgum), in-toeing, out-toeing, or toe walking. Often, as kids grow these conditions can correct themselves without treatment.

What Is the Heart and What Does It Do? The heart is an organ that’s a pump, usually beating about 60 to 100 times per minute. With each heartbeat, the heart sends blood throughout your body, carrying ...

What Is Autism Spectrum Disorder? Autism (say: AW-tiz-um) spectrum disorder (or ASD) is a difference in the way a kid's brain develops. Kids with autism may have trouble making friends and talking to ...

The male reproductive system is made up of the parts inside and outside the body that help a male make a baby. Both the male and female reproductive system are needed for this. The male reproductive ...

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 ...

What Is the Digestive System? The digestive system breaks down the food we eat into tiny parts to give us fuel and the nutrients we need to live. As food breaks down, we get amino acids from protein, ...

A well-stocked first-aid kit, kept within easy reach, is a must for every home. Having the right supplies ahead of time will help you handle an emergency at a moment's notice. Keep a first-aid kit in ...

Having a shy style isn't necessarily a problem. It's perfectly OK to take time to warm up to new people and situations. But shyness blocks some people from being as comfortable or sociable as they'd ...

Gymnastics is a fun, challenging sport and a great way to stay fit. Whether you’re doing a floor routine or taking a turn on the vault, follow these tips to stay safe during practices and competitions ...

What Is an Atrial Septal Defect? An atrial septal defect (ASD) — sometimes called a hole in the heart — is a type of congenital heart defect in which there is an abnormal opening in the dividing wall ...

How Does the Brain Work? And How Does the Nervous System Work? How do you remember the way to your friend's house? Why do your eyes blink without you ever thinking about it? Where do dreams come from?

We've got head-to-toe info about common illnesses and injuries, from the flu and bug bites to nosebleeds and broken bones.