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Human Atlas: Lasik Eye Surgery

Related Article: Learn more about preventative care.

The purpose of lasik eye surgery is to sharpen the patient's vision, reducing the patient's dependency on glasses and contact lenses. Learn more about lasik eye surgery in this video.

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Immunizing Against West Nile (0:56)

Watch this video about potential vaccines for west Nile virus on HowStuffWorks. The best vaccine may be a type that is made from the virus' DNA. Learn about west Nile virus in this video from ScienCentral.

Ready for Cough and Cold Season (3:18)

Watch this video about staying healthy during cough and cold season on HowStuffWorks. At parties, crowds of people shaking hands, sharing food, and mingling in close proximity are a haven for cold and flu germs. See how germs and bacteria work in... More »

Dr. Know: Flu Shot (0:35)

Check out Dr. Know's explanation about flu shots, which can't really give you the flu. Learn more about influenza in this video from Discovery.

Dr. Whyte's Health Tips: Flu Shots (3:07)

Dr. John Whyte of Discovery Health explains why people should get flu shots. Learn more about influenza in this video from Discovery.

Nigerian Children Get Polio Vaccincations (2:56)

Watch this UNICEF video about polio vaccinations on HowStuffWorks. In the past, Nigerians didn't understand the rationale behind immunizations and used to refuse polio vaccinations; before 2006, Nigeria reported nearly half of the world's polio... More »

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100 Greatest Discoveries: Theory on Germs (2:50)

In 1846 Vienna, childbed fever caused death among many pregnant patients. Consequently, Dr. Ignaz Semmelweis began an experiment where his doctors washed their hands. Learn more about this experiment on the Science Channel's "100 Greatest... More »

Parasites: How They Live (21:51)

This program explores parasitic interactions between organisms and examines some of the parasitic members of the five kingdoms. It also discusses the effects of internal and external parasites on humans, as well as the infections and diseases they... More »

Your Body Your Health: Preventing and Treating AIDS (6:14)

HIV attacks T-cells -- the cells that protect the body -- replicates and distributes itself throughout the body. HIV mutates quickly -- there are five major strands now, so developing a vaccine is challenging.