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A hit TV show is not complete without a memorable theme song. Read our list of 18 memorable TV theme songs, including the theme from Happy Days.

Aging causes include both genetic and environmental factors. Find out what research says about aging causes and rates of aging.

Joining or hosting a conference call using your mobile device can be a simple process. Learn all about mobile conference calling at HowStuffWorks.

This article answers common slow cooker questions. Learn about using a slow cooker, including advice on slow cooker size, food safety, and more.

Oil spill cleanup is often done through containment and skimming the oil off the surface of the water. Learn about oil spill cleanup methods.

Conference calls can be a real time saver or a real headache. Learn how to do it right at HowStuffWorks.

Locavores limit their food supply to what is grown and produced in a restricted radius. Learn about locavores and the locavore lifestyle.

In vitro fertilization is the most common type of assisted reproductive technology. Learn more about how the vitro fertilization process works.

Organic foods and other products are popping up everywhere.

SMS is a common method of sending short messages between cell phones. Find out how SMS works and learn about the advantages of text messaging.

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