Word: lunges
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Dates: during 1990-1999
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...Science is the driving force," says Ronald G. Geller, who works at the National Heart, Lung and Blood Institute. "Right now, the initial review groups that review applications consider only direct costs...
...years the Environmental Protection Agency has urged Americans to check their homes for radon contamination. Seeping into basements from underlying rocks and soil, the colorless, odorless radioactive gas raises the risk of lung cancer. The EPA maintains that a household level of four picocuries of radiation per liter of air is enough to produce cancer in 13 to 50 of every 1,000 people who breathe it regularly. The agency estimates that at least 8 million homes exceed this level, warranting such measures as sealing foundation cracks...
...growing number of scientists contend that radon's dangers are overstated. They point out that the EPA bases its warnings primarily on studies of lung-cancer rates among uranium miners. Such workers toil for years in subterranean pits where radon concentrations are thousands of times as high as levels in homes. In some studies, it was not clear how much of the cancer was caused by radon, how much by smoking cigarettes and how much by a combination of the two: researchers believe that radon poses a higher risk for smokers...
Bombs raining on Baghdad drew out thousands of protesters, and demonstrations continued yesterday as Americans made public their support for or anger at the war. Some burned the flag. Some lung to candles in prayer...
...role does it play? No one in the research community believes that too many thick shakes and fries can in themselves cause normal, well-behaved cells to mutate into unruly malignant ones. In fact, no one has the faintest notion what causes the initial genetic changes to occur. "In lung cancer we have a reasonable idea that the major cause is cigarette smoking," says Dr. Philip Leder, chairman of Harvard's department of genetics. "In skin cancer we understand that the major cause is ultraviolet light, which is absorbed by DNA and causes it to break. But with breast cancer...