Health and Medicine

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Heart Attack

We all value the muscles in our legs and arms. But the heart is the most important muscle that keeps our bodies functioning. It pumps blood to the brain and the rest of the body. And since blood trans …


910

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Hip Replacement

The hip joint is located where the upper leg bone or femur meets the pelvis. At the tip of the femur is a femoral head which is ball-shaped to fit into an opening in the pelvis called the acetabulum. …


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Human Eye

Look around. What do you see? Human beings can obtain a large amount of information about the surrounding environment through their sense of vision. But to see, we need light and the light-processing …


1166

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In Vitro Fertilization

Ever hear the phrase "test-tube baby"? Then you may know that it is a misleading way of referring to a baby conceived through in vitro fertilization. All babies develop from two different cells that j …


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King's Singers


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Knuckle Crack


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Liver

How big is an average chemical factory? How big is a chemical factory that not only produces new chemicals, but also recycles old ones and turns them into more new chemicals? What if this factory also …


1542

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Malaria Tracking

Mosquitoes aren't just irritating. They can carry diseases like malaria, a huge problem for people who live in the tropics where mosquitoes breed year-round. Malaria endangers the lives of millions wo …


916

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Medical Quakeries

The word quackery usually brings to mind old-time fast-talking medicine peddlers who conned their listeners into buying cure-all bottled syrup. It reminds people of flowery and curious advertisements …


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Memory

Memory is such a complicated process that no universally accepted theory exists to explain how it works. Scientists don't even agree on where individual memories are stored. However, they do agree on …


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