Word: bones
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...scientists, putting the demands of native custom before those of scientific knowledge is a disturbing trend. Ancient bones often provide the sole link to prehistoric societies, giving evidence of diet, brain size, stature, disease and longevity. Should scientists be deprived of the right to study these precious fossils, says Anthropologist Milford Wolpoff of the University of Michigan, "it would be an unparalleled tragedy." Studies of aboriginal bones are yielding some particularly important findings. Scientists had long assumed that the original Australians migrated to the continent from Indonesia about 10,000 years ago and, isolated from the influence of other societies...
Despite its popularity, arthroscopy, some doctors complain, is being overused, especially in diagnosis. It does have some drawbacks. Its primary use is in removing torn tissue and bone chips, but doctors must still open the knee to work on ligaments and tendons. Also, patients seeing the small wounds and feeling little pain after the operation may be tempted to exercise too soon. James was surprised when Benoit arrived for a checkup only a week after surgery and told him that she had already completed two one-hour runs. Says he: "I've operated on a lot of other runners...
...gymnastic progress since the 1979 World Championships in Fort Worth. "It was all the more bittersweet because I had gone to Moscow to cover the 1980 Games they could not attend. After the men's team victory, I talked to Bart Conner. There is no hug as bone-crushing as that of a gymnast capable of hanging motionless in an iron cross. 'It wasn't easy to wait so long,' I said to him. 'Yes,' he replied, 'but aren't you glad we stayed to see this...
...their fear of it. When it is done well, the beam reveals a choreographed grace made lovelier by the rigors of its execution. But make a mistake, lose balance for a nanosecond, and the result is an ugly flailing of arms to remain perched on the thing or a bone-crunching fall...
...gums. The germs injure the tissue, and one of the body's responses appears to be the production of arrachidonic acid. Then enzymes turn this acid into three chemicals-prostaglandins, prostacyclines and thromboxane-and scientists believe that, among other things, these chemicals inflame the gums and erode the bone around the teeth...