Answer this one: Although mammograms can identify tumors at a very early stage, the tumors may have been growing for how long by the time they show up on the X-ray?

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.

Learning how to prevent knee injuries and treating them if they occur can help you stay active at work and play.

Kidney stones are one of the most common problems of the urinary tract—and one of the most painful disorders, period. How much do you know about kidney stones? Try your hand at the following quiz.

Arthritis is usually thought of as a disease that occurs later in life, but one child in every thousand develops a juvenile form of this illness. Take this quiz to learn more.

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: When I use herbs and spices, I don’t need to worry about following strict rules about combining certain herbs and spices with certain foods.

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.

Bleach, ant killer, and gasoline are poisons commonly found in the home. But plenty of other toxic or hazardous chemicals fill our shelves and cupboards, and some of them may surprise you. Hairspray, for instance, is highly flammable. Learn more about these chemicals by taking this quiz.

Halloween can be full of fun and excitement for youngsters, but it’s also a time for trick-or-treaters to be careful. Take this quiz to learn more about this popular holiday and how to make sure your family’s celebration is safe this year.