Dust Mites. Dust mites are teeny, tiny bugs that live in household dust. You have to be pretty small to live in dust — and they are. You actually need a microscope to see them! So if you can't even ...

Need a science project, or just looking for something fun to do? These experiments reveal the way your body works. Check with a grown-up first because some will require help from an adult.

Tranquilizers and other depressants (dih-PRESS-entz) calm nerves and relax muscles. They are bright-colored capsules or tablets that are legally available through a doctor for medical reasons, but can ...

How did you learn how to ride your bike? Someone probably gave you a few lessons and then you practiced a lot. You can learn how to study in much the same way. No one is born knowing how to study. You ...

Hablar con tus padres sobre los anticonceptivos, como la píldora, te puede parecer incómodo. Pero te podrían sorprender: muchos padres están abiertos a mantener este tipo de conversaciones, porque sus ...

As kids grow from grade-schoolers to preteens, there continues to be a wide range of "normal" regarding height, weight, and shape. Kids tend to get taller at a pretty steady pace, growing about 2.5 ...

What Is Pneumocystis Pneumonia? Pneumocystis pneumonia (PCP) is a lung infection caused by a fungus. It's rare in healthy people, and usually affects those with a weak immune system.It's the most ...

Lupus is a disease that causes the immune system to mistakenly work against the body's own tissues and attack healthy cells. Lupus can affect almost any organ. Symptoms of lupus — such as joint or ...

Weaning is when a baby moves from breastfeeding to other sources of nourishment. Weaning your baby is a process that takes patience and understanding from both you and your child. When Is the Right ...

For most kids, body odor is part of growing up. Kids start to have body odor around the time puberty starts and hormones change. Usually, this happens when females are 8–13 years old, and males are ...

What Is Salmonella?. Salmonella is a bacteria (type of germ).Someone with a Salmonella infection (or salmonellosis) might have diarrhea, vomiting, fever, and cramps.With rest and plenty of fluids, ...

Los huesos proporcionan sostén a nuestros cuerpos y ayudan a darles forma. Los músculos tiran de las articulaciones, lo que nos permite movernos. Las articulaciones son las uniones entre huesos. Hacen ...