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Pet Sitters 101
animals.howstuffworks.com/pets/pet-travel/pet-sitters.htm
Pet sitters do a job that many people would turn their nose at. Learn all about pet sitters at Animal Planet.
Obsessive Compulsive Disorder Overview
health.howstuffworks.com/mental-health/mental-disorders/obsessive-compulsive-disorder.htm
Obsessive-compulsive disorder is largely misunderstood. OCD isn't just about cleanliness and organization. Go inside obsessive-compulsive disorder.
How Gene Pools Work
science.howstuffworks.com/life/genetic/gene-pool.htm
The physical you is a result of your DNA, and your DNA is part of the human gene pool. Find out what the "gene pool" really is and what happens when it shrinks.
How X-rays Work
science.howstuffworks.com/x-ray.htm
X-ray machines seem to do the impossible: They see straight through clothing, flesh and even metal, thanks to some very cool scientific principles at work. Find out how X-ray machines see straight to your bones.
Exactly why is your thyroid so important?
health.howstuffworks.com/human-body/systems/endocrine/why-thyroid-important.htm
The thyroid gland works to communicate with various parts of the body. Learn more about the thyroid gland and how it sends messages.
Hyponatremia Explained
health.howstuffworks.com/wellness/men/sweating-odor/hyponatremia.htm
Hyponatremia is a serious medical condition. Visit Discovery Health to learn all about hyponatremia.
Why are breasts different sizes?
health.howstuffworks.com/wellness/women/general/breasts-different-sizes.htm
Why are breasts different sizes? Find out why different women have different size breasts.
Getting a Grip on Lyme Disease
health.howstuffworks.com/diseases-conditions/infectious/lyme-disease.htm
There's been a steady uptick in Lyme disease across the United States since 1997, but the news isn't all bad. HowStuffWorks explains.
How Fiber Optics Work
computer.howstuffworks.com/fiber-optic.htm
Fiber optics is a really cool technology that enables the long-distance transmission of data in light signals, and is used in many more ways than you think.
How Fax Marketing Works
money.howstuffworks.com/fax-marketing.htm
Fax marketing is a somewhat dated tool that is still used by many businesses today. Learn more about how fax marketing at HowStuffWorks.