Word: nutrient
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Dates: during 1990-1999
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...things, the tricks ensure that mutation will pile on mutation by shucking off, or silencing, genes that ordinarily monitor replicating DNA for chemical errors. The malignant cells quickly become resistant to the poisons physicians prescribe to kill them. They also acquire the disturbing ability to stimulate the formation of nutrient-bearing blood vessels, thus spurring their own growth. Even if malignant cells grow rather slowly, they grow inexorably, eventually forming a deadly mass that invades surrounding tissue and spreads, or metastasizes, to far-flung locations...
Like 500,000 other Americans each year, Lee was suffering a stroke. Something had cut off the flow of oxygen and nutrient-rich blood to a portion of her brain. Sometimes the culprit is a leaky artery. But in Phillips' case, as in 80% of strokes, the problem, revealed by a CAT scan, was a clot that was plugging up one of the blood vessels in her head. Unless the clot was dislodged, part of her brain would die, leaving her at least partly paralyzed...
...anything, have toxic effects on cells. Add to that the weakening over time of the immune system, which leads the body's fight against disease, and decline is inevitable. Biologists are now experimenting on rats and rhesus monkeys to see if restricting the intake of calories (while maintaining healthy nutrient levels) will slow the metabolic rate, producing a lower body temperature that in turn will decrease oxygen consumption. A lower rate of metabolism equals fewer radicals equals longer life...
...VITAMIN E and stay perky? Studies on mice suggest that the nutrient, which is already thought to ward off cancer and heart disease, may also slow aging of the brain and the immune system...
...average rate. This phenomenon isn't limited to vitamin E. Two major studies released earlier this year--and reconfirmed in last week's New England Journal--showed that beta-carotene pills don't promote good health the way beta-carotene-rich foods (like carrots) do. Why should the same nutrient work when in food and not when in pills? The leading theory is that vitamins need other natural chemicals to activate them or help them efficiently enter the body's cells...