You may have heard that cases of measles are on the rise lately, but there’s no reason to panic. Here’s what you need to know about measles and how to keep your family safe. Measles is a very ...

A genetic condition is one that happens when a gene changes. Some genetic conditions can be inherited (passed from parents to their children). Genes are sections of DNA (deoxyribonucleic acid) that ...

La enfermedad renal crónica ocurre cuando los riñones se van dañando a lo largo del tiempo y dejan de funcionar tal y como deberían para filtrar la sangre. Si su hijo padece una enfermedad renal ...

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 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?

Both the brain and the spinal cord are protected by bone: the brain by the bones of the skull, and the spinal cord by vertebrae, a set of ring-shaped bones. They're both cushioned by layers of ...

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 ...

Flat feet are feet that do not have an arch. The middle of the foot touches the ground. Feet with no arches is the main sign of flat feet. Sometimes, flat feet can cause foot, ankle, or knee pain.

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 ...

Feeling short of breath during pregnancy is quite common, and usually isn't cause for concern. But let your doctor know because lots of things can cause shortness of breath. As a normal part of ...

Glucose is the main type of sugar in the blood and is the major source of energy for the body's cells. Glucose comes from the foods we eat or the body can make it from other substances. Glucose is ...

It’s normal for people to masturbate (touch or rub their own genitals because they like the way it feels). Some people do it to relieve stress or tension. It’s nothing to be ashamed of or embarrassed ...