How Alcohol Works - About two-thirds of all adults partake in this mind-altering substance. Learn what alcohol is, how the body processes it and why it has such a big effect on those who drink it.
How Allergies Work - If you've got allergies, you know the drill -- sneezing, wheezing, itching. But do know why you get these symptoms? Find out about the immune-system mix-up we call an "allergy."
How Anesthesia Works - Learn all about what happens while you are sleeping through surgery!
How Artificial Hearts Work - The world waits as the latest artificial-heart-transplant patient recovers. Discover how this new medical advance is saving lives.
How Artificial Vision Will Work - Over the next several years, artificial vision systems implanted directly on the retina may restore sight for many blind people. Learn all about this emerging and interesting technology!
How Aspirin Works - Feel a bit of a headache coming on? Muscle aches? Cramps? Arthritis? Learn how aspirin and other analgesics find the pain and make it go away!
How Biological and Chemical Warfare Works - The threat of bio/chem warfare is in the news. Understand what's involved in this type of weaponry.
How Blood Works - Learn all about the amazing red fluid that keeps you alive!
How Body Armor Works - Body armor is essential for many people in high-risk professions. Learn how modern armor technologies stop bullets.
How Botox Works - Botox injections are being used to erase the wrinkles of time. Some say poison, some say remedy. Find out what Botox is and how it's related to botulism.
How Calories Work - At any given time, millions of people are trying to slim down. Learn all about calories and exactly how (and why) they affect your weight.
How Cancer Vaccines Will Work - Over the next several years, cancer vaccines have the potential to completely change the treatment of cancer. Learn how these vaccines will work!
How Cell Phone Radiation Works - And the debate goes on: Each week we hear conflicting reports about cell-phone radiation. Find out what the buzz is about and how to protect yourself.
How Cells Work - The human body is composed of about 10 trillion cells. Find out about enzymes, DNA, E. coli and what it all means to you.
How Cholesterol Works - Find out why your body needs cholesterol, but not too much!
How Cipro Works - Ciprofloxacin is a drug used to treat people exposed to anthrax. Learn how this medicine works against the anthrax bacteria.
How CPR Works - CPR, or cardiopulmonary resuscitation, is an emergency technique that you can use to save a friend's life. Learn how CPR works!
How Diabetes Works - In the U.S. alone, 16 million people have diabetes -- and about a third don't even know it. Find out some information you just may need.
How Diagnosing Heart Disease Works - Learn how your doctor determines what is going on inside your heart!
How Dieting Works - Dieting is a multibillion dollar industry in the United States, but it doesn't work for most people. Learn why gaining weight is so easy and how you can control it!
How DNA Evidence Works - DNA evidence is now as important as fingerprints in convicting criminals and freeing innocent suspects. Learn how your DNA can be used to identify you.
How Evolution Works - The theories of evolution abound, and it's a subject of some very heated debate. Learn more about the ideas surrounding the beginning of life and how we got where we are today!
How Facial Recognition Systems Work - How unique is your face? New software can identify you by scanning your features. Learn how facial recognition software can turn any crowded street into a police lineup.
How Fat Cells Work - Have you ever wondered how your body stores those excess calories as fat in fat cells? Learn about this amazing process!
How Gas Masks Work - Gas masks may be the only viable protection against bio/chemical weapons. Learn how these devices work.
How Gene Pools Work - 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 Hearing Works - Ears are truly extraordinary organs and hearing is a fascinating process. Explore how hearing works.
How Human Cloning Will Work - Learn who plans on cloning humans, why they want to and about the controversies surrounding it.
How Human Reproduction Works - Sex plays a major role in much of our culture. Yet many people are confused about what sex actually is, and what it's really for. Explore the biology of sex.
How LASIK Works Lots of people are trading in glasses and contacts for more permanent vision correction. Find out if you're a candidate for LASIK!
How Laughter Works -Learn why we laugh, and how laughter helps you look your best!
How MRI Works - The magnetic field used in MRI could suck a metal watch right off your wrist and into the machine. Learn what MRI is, what it's used for and just how powerful those magnets are.
How Muscles Work - Without our muscles, we couldn't walk or talk, and our blood would stop flowing. Learn about the different types of muscles in your body and what they do.
How Nicotine Works - Nicotine, like caffeine, is a drug used by millions of people. Find out how nicotine affects the human body and what makes it so addictive.
How Nuclear Medicine Works - Nuclear materials get used in many forms of nuclear medicine -- everything from PET scans to chemotherapy uses them! Learn how nuclear medicine works!
How Organ Transplants Work - Today, organ transplants are relatively simple procedures, yet thousands of people die every year waiting for their turn. Find out why.
How OxyContin Works Record numbers of people are illegally obtaining the prescription drug OxyContin. Find out what makes this pain killer so powerful.
How Performance-Enhancing Drugs Work - Every two years, as the Olympics roll around, performance-enhancing drugs are back in the news. Find out what types of drugs athletes use, what their side effects are and how they're tested for.
How Prenatal Testing Works - During a pregnancy, different kinds of prenatal testing are an important part of the process. Learn how all the different tests protect both the mother and the child.
How Robotic Surgery Will Work - Robots are already assisting doctors in the operating room. Tele-surgery may not be that far off. Learn about robotic surgery and what it could mean to the future of health care.
How SCUBA Works - Advances in SCUBA gear have opened up the underwater world to more people than ever before. Find out how SCUBA works.
How Sleep Works - Every animal does it, some more than others, and to this day the reasons are a mystery. Find out what your body does while you sleep and check out some theories on sleep and dreams.
How Sunburns and Sun Tans Work - There is something mysterious about the sun and skin -- read this article to learn if the sun is right for you!
How Sunglasses Work - For some of us, summer is already here -- time to break out the sunglasses. But are they really protecting your eyes? Find out if those $10 sunglasses are as good as the high-cost ones.
How Sweat Works - We all sweat when we exercise and when we are nervous, but have you ever wondered why? Learn exactly what sweat is and where it comes from!
How Ultrasound Works - Ultrasound can help doctors look inside a patient's body to see everything from heart valves to a moving baby! Learn how ultrasound works!
How Viruses Work - Influenza and Ebola are both viruses. Find out what a virus does to your body and how to decrease your chance of exposure.
How Vision Works - A fascinating article that describes how your eyes and vision works!
How Weightlessness Works - As Space Station astronauts return to Earth after a three-month stay, learn about the effects of weightlessness on the body.
How Your Brain Works - Welcome to your brain as only can explain it! Learn about this truly amazing organ.
How Your Heart Works - Your heart is one of your most vital organs, and it is also one of nature's miracles of design!
How Your Immune System Works - You will not believe all of the different things your immune system can do!
How Your Kidneys Work - Your kidneys are two of the most important organs in your body. Learn how your kidneys work and how they affect your whole body on a daily basis!
How Your Lungs Work - We all breathe without really thinking about it -- it just happens naturally. Learn all about your lungs, various conditions and diseases, and what makes the breath of life so crucial!