Utilizar un condón al mantener relaciones sexuales puede ayudar a prevenir las enfermedades de transmisión sexual (ETS) y el embarazo. Pero utilizar dos preservativos a la vez no te proporcionará ...

What’s Happening in My Body? Even though it’s called week 1 of your pregnancy, you’re not actually pregnant yet! This first week of pregnancy is your menstrual period, and the week before conception ...

Stretch marks are fine lines in the skin that happen when quick growth or weight gain stretches the skin (like during puberty). Skin is usually fairly stretchy, but when it's overstretched, the normal ...

Medically reviewed by: Joseph H. Piatt Jr., MDThis link opens in a new tab Learn About Neurosurgery Care at Nemours Children's HealthThis link opens in a new tab A ventriculoperitoneal (VP) shunt is a ...

Medically reviewed by: Melanie L. Pitone, MDThis link opens in a new tab Learn About Nephrology (Kidney Care) at Nemours Children's HealthThis link opens in a new tab The kidneys have many important ...

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 ...

Medically reviewed by: Amy W. Anzilotti, MDThis link opens in a new tab Learn About Pediatric Neurology (Brain & Nervous System Care) at Nemours Children's HealthThis link opens in a new tab Chiari I ...

Overwhelmed by classwork? Scared because your parents are splitting up? Worried about a friend? Feel like you don't fit in? With a problem on your mind, you may lose sleep. You might find you can't ...

Medically reviewed by: KidsHealth Medical ExpertsThis link opens in a new tab Learn About Primary Care Pediatrics at Nemours Children's HealthThis link opens in a new tab We see and hear about hearts ...

Medically reviewed by: Larissa Hirsch, MDThis link opens in a new tab Learn About Primary Care Pediatrics at Nemours Children's HealthThis link opens in a new tab The male reproductive system is made ...

Your body has a "highway" system that sends blood to and from your body parts. It's called the circulatory system and the roads are called arteries and veins. Arteries, which usually look red, carry ...

You've probably heard countless times how exercise is "good for you." But did you know that it can help you feel good too? Getting the right amount of exercise can rev up your energy levels and even ...