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Pregnancy at Different Ages: 20s, 30s and 40s
Pregnancy is different at different ages, including 20s, 30s, and 40s. Learn about pregnancy at different ages at Discovery Health.
Basic Biology test!
play.howstuffworks.com/quiz/basic-biology-test
Metabolism? Catabolism? Mitochondria? Taxonomy? Biology isn't the easiest of subjects, but there are some basics everyone should remember from their school days. Test your knowledge now!
Can You Answer All of These "Jeopardy" Style Questions?
play.howstuffworks.com/quiz/can-you-answer-all-these-jeopardy-style-questions
Don't worry, we won't tell Alex Trebek that you weren't able to get all of the following "Jeopardy"-style questions right. But give it your best shot ... and you can pretend that you'll go home with piles of fresh game show cash.
How Living in Total Darkness Sabotages Your Sleep
health.howstuffworks.com/mental-health/sleep/disorders/darkness-sabotages-sleep.htm
Imagine being trapped in a cave or some other place where you were in total darkness. Would you know when to sleep and wake? And how would that throw off your body clock?
5 Halloween Myths That Will Not Die
Checking your kids' candy for poison? Locking up your black cat so it doesn't get snagged by a Satanist? You can relax after finding out the real stories behind these urban legends.
Can You Name the Pixar Movie From an Image?
play.howstuffworks.com/quiz/can-you-name-the-pixar-movie-from-an-image
If you've seen "Toy Story," "Toy Story 4" and every Pixar movie in between, then you're just the right person for this quiz! Prove you're the ultimate Pixar fan by naming all of these movies by an image ... and go to infinity and beyond!
Headaches 101
health.howstuffworks.com/diseases-conditions/headache/headache.htm
Headaches are a frequent pain (literally) for many. What causes headaches, and can they be prevented? Are primary or secondary headaches more dangerous?
How Face Transplants Work
health.howstuffworks.com/medicine/modern-treatments/face-transplant.htm
A face transplant may be difficult to imagine, but doctors can now transplant part, or all, of a face from a donor. Read about the face transplant.
10 Embarrassing Problems You Don't Want to Discuss with Your Doctor
health.howstuffworks.com/wellness/preventive-care/10-embarrassing-problems.htm
Some embarrassing problems you don't want to discuss with your doctor. Find out the 10 most embarrassing problems you don't want to discuss.
How Muscles Work
health.howstuffworks.com/human-body/systems/musculoskeletal/muscle.htm
Muscles are your body's engine, and you couldn't do anything without them. Learn about skeletal muscle, smooth muscle, and cardiac muscle and how muscle contraction works.