Word: endocrinologists
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Dates: during 1990-1999
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...obese people, cells quickly become sated and sluggish. They reduce their sensitivity to insulin and, thus, their appetite for glucose. To compensate, the pancreas heroically pumps out more and more insulin. Usually it is able to keep up with the work load. As Dr. Jeffrey Flier, an endocrinologist at Beth Israel Hospital, emphasizes, "Most obese people do not have diabetes." In susceptible individuals, however, obesity can overload the system, and insulin-producing cells begin to stop functioning. One intriguing, if controversial, hypothesis suggests that obese people may produce large quantities of amylin, a protein made by the same cells that...
While such a choice is unconventional, it is also natural, argues Dr. Robert Nachtigall, a reproductive endocrinologist in San Francisco. Because women have a monthly hormonal cycle, "they can't escape the fact that their bodies are telling them to do something," he says. "The biological drive to reproduce may be stronger than the cultural yen to get married...
...cure-all for aging. For one thing, cells of the brain, eyes, ears and elastic tissues such as ligaments and tendons are not responsive to HGH. "The ((Wisconsin)) study does demonstrate clear-cut effects of growth hormone," says Dr. Mary Lee Vance, a University of Virginia endocrinologist who wrote an editorial accompanying the report, "but to say it reverses the effects of aging is an overstatement. It's just one part of the equation." Other processes that may influence aging include cumulative tissue damage caused by destructive particles called free radicals that form within the body, and the inability...