estar inquieto o irritable y llorar mucho (a menudo con un llanto agudo) tener problemas para dormir y bostezar mucho tener temblores o movimientos espasmódicos tener rigidez en brazos y piernas tener ...

Period cramps can be mild or they can really hurt. But there are things you can do to feel better. Let's find out what cramps are and what to do if you get them. Cramps happen when the uterus (the ...

Earaches are common in kids and can have many causes. Here’s why they happen and what to do when your child complains of ear pain. Give acetaminophen or ibuprofen as needed to ease pain (check the ...

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 ...

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 ...

How Much Sleep Do School-Age Kids Need? School-age kids need 9–12 hours of sleep a night. Homework, sports, and after-school activities, screen time (on computers, TVs, smartphones, and other devices) ...

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 much do you know about your digestive system? Find out by taking this quiz!

This is a general outline of the milestones on the road to reading success. Keep in mind that kids develop at different paces and spend varying amounts of time at each stage. If you have concerns, ...

Heavy metals are elements that are found in soil, water, and the air we breathe. Plants take up these metals as they grow and can end up in the food we eat. Our bodies need some heavy metals (like ...

Girls have lots of questions about the body changes of puberty. When will my breasts grow? What's the "normal" age to get your first period? Watch this video and find out!

Llevar casco de ciclista cuando se monta en bici no solo es de personas inteligentes. En muchos estados es una obligación dictada por la ley. Muchos accidentes de bicicleta traen consigo lesiones en ...