Your Body

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  1. A Question of Taste -- Or Is It Smell?

    Our taste buds are important, but smell seems to play a bigger role. Most people who complain of loss of the sense of taste are surprised to learn they are actually having problems with their sense of smell.

  2. A Quick Look at Reflexes

    What happens when your health care provider taps on your knee with a rubber mallet? Your leg kicks forward, seemingly on its own. And in a sense, your leg has a mind of its own -- in your spine.

  3. A Strategy for Scars

    To reduce scarring, keep the skin area out of the sun. Ultraviolet rays can darken your scar, making it more noticeable.

  4. Alcohol and Older Adults

    Many older adults enjoy a glass of wine with dinner or a beer while watching the game on TV. In fact, half of Americans ages 65 and older drink alcohol. Having a drink now and then is fine—as long as you don’t overdo it.

  5. All About Endocrine Hormones

    Hormones, which are chemical signals, affect growth, metabolism, blood pressure and even behavior.

  6. All About Hair

    Are you going bald? Which conditioner should you use? Here are the answers to these and other questions about your head of hair.

  7. All About Melatonin

    Melatonin is a hormone that regulates your circadian rhythm, or the 24-hour cycle of biological processes called your "internal body clock."

  8. All About the Stomach

    Your stomach's starring role is as an organ essential for digestion. The stomach breaks down all the food you eat.

  9. Andreas Vesalius, Father of Modern Anatomy

    Vesalius revolutionized the science of anatomy by basing his findings on direct observation of the body itself, rather than on centuries-old received wisdom.

  10. Appendicitis: Children and Teens

    Appendicitis, an infection of the appendix, is the most common reason for a child to need emergency abdominal surgery.

  11. Artificial Teeth
  12. As You Age, Be Aware of B12 Deficiency

    Getting too little vitamin B12 may leave you feeling fuzzy in your thinking and lead to numbness or tingling in your hands and feet.

  13. Basics About Your Newborn’s Body

    Even the best-prepared parents may be surprised by a few things that are quite normal in newborns.

  14. Blood Transfusion Quiz

    Every year, millions of Americans roll up their sleeves to donate blood, helping accident victims, surgical patient and others in need. How much do you know about blood transfusions? Take this multiple-choice test and find out.

  15. Blood Vessels: Your Internal Superhighway

    Every minute of every day, millions of blood cells trek through about 60,000 miles of blood vessels -- enough to stretch from New York City to San Francisco 23 times -- delivering oxygen and nutrients to every tissue. Your cardiovascular system includes your heart and two basic kinds of blood vessels: arteries and veins.

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