Aunque no hayas tenido tu primera regla o período menstrual, podrías quedarte embarazada si mantienes relaciones sexuales. Esto se debe a algo llamado ovulación, que ocurre incluso antes de que ...

Alpha thalassemia is an inherited blood disorder in which the body doesn't make as much alpha globin. Alpha globin is a building block of hemoglobin. Hemoglobin is the part of red blood cell (RBC) ...

When Are Kids Ready to Toilet Train? Many parents are unsure about when to start toilet training or "potty training." Not all kids are ready at the same age, so it's important to watch your child for ...

What Is a Perforated Eardrum? A perforated eardrum is a tear or hole in the ear's tympanic membrane (the eardrum). A perforated (PER-fer-ate-id) eardrum can hurt, but most heal in a few days to weeks.

If you're hungry, grab your apron and get cooking! Making food yourself - with a little help from a parent - is a great way to learn about food and meal preparation. And we have plenty of recipes for ...

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 ...

What Does the Immune System Do? If you've ever wondered how your immune system works, this movie is for you!

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 — ...

Heroin belongs to a group of pain-relieving drugs called narcotics. The drug comes from the opium poppy, a flower that grows in Asia, Mexico, and South America. Pure heroin has the consistency of ...

using saunas or hot tubs taking very hot, long baths and showers using electric blankets or heating pads becoming overheated when outside in hot weather or when exercising Instead of hot tubs or ...

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 ...

Students who require extra help and support might be eligible for special services that provide individualized education programs (IEPs) in public schools, free of charge to families. Understanding ...