BMI, or body mass index, uses weight and height to calculate weight status for adults. BMI for children and teens also takes into account gender and age because healthy body fatness differs between boys and girls and changes as they grow. This BMI calculator will help you determine if your child is at a healthy weight.

You'll need to know mom's and dad's current height to help calculate the estimate of how tall the child will be when she or he becomes an adult.

Learn about acne with this multiple choice quiz. You'll learn, for example, which factors promote blackheads.

Answer this one: Which is the most important hygiene habit to teach young children? Learn the answer to this and other prevention questions by taking this multiple choice quiz.

Your doctor can't give you the best care if you don't say what's really going on. This true-false quiz will help you prepare for your next visit.

True or false: A drug-alcohol interaction can lead to extreme drowsiness and other effects. Do you know the answer to this and other questions about drug interaction?

This quiz will help you better understand how to deal with fever. Example: What should you do if a child has a temperature of 103.5 degrees two hours after taking fever medication?

True or false: What percentage of people have a fire escape plan for their home? Learn the answers to important fire prevention questions by taking this quiz.

True or false: The growth plate most often fractured is in the ankle? Learn the answers to important questions about the growth plate by taking this quiz.

True or false: Head lice travel from one person's head to another's by jumping. Check out this and other answers to true-false questions about head lice.

A pregnant woman passes antibodies to her unborn baby through the placenta to protect against certain diseases. How long does this natural immunity last?

A surprisingly large number of American teenagers experiment with intoxicating inhalants, resulting in an untold number of deaths. Find out more about inhalant abuse by taking this quiz.

True or false: The most serious effects of lead exposure in children are vomiting and weight loss? Learn the answer by taking the Lead Safety Quiz.

Where are pinworms primarily found in the body? Get the answer to this and other questions concerning pinworms when you complete the multiple choice quiz.

Answer this one: Which part of the body is affected the most by Reye's syndrome? Learn about Reye's syndrome by taking this quiz.

Take this multiple choice quiz to answer your questions about teen health. Example: Routine physical examinations should be done how often during the teen years?

Answer this one: Which behaviors indicate that your child may be ready to learn to use the toilet? Learn the answer to this and other questions by taking this multiple choice quiz.

Answer this one: Tonsils are located on the back of the throat. Where are the adenoids located? Take the multiple choice quiz.