Memory loss tied to stress....Some order people remain quite, sharp while other, seemingly healthy individuals become ever more forgetful with age. Stress can be the cause, say Canadian psychiatrists. High amounts of cortisol cortisol (kôr`tĭsôl') or hydrocortisone, steroid hormone that in humans is the major circulating hormone of the cortex, or outer layer, of the adrenal gland. , a stress hormone Stress hormones such as cortisol and norepinephrine are released at periods of high stress. The hormone regulating system is known as the endocrine system. Cortisol is believed to affect the metabolic system and norepinephrine is believed to play a role in ADHD made by the body, correlate with subtle memory and attention problems, report Michael J. Meaney and his colleagues at McGill University McGill University, at Montreal, Que., Canada; coeducational; chartered 1821, opened 1829. It was named for James McGill, who left a bequest to establish it. Its real development dates from 1855 when John W. Dawson became principal. in Montreal. Once a year for the past five years, the Years, The the seven decades of Eleanor Pargiter’s life. [Br. Lit.: Benét, 1109] See : Time McGill team has checked the concentration of the streets hormone in the blood of 130 healthy volunteers age 55 to 87. Also, a psychiatrist who does not know the hormone status has tested the cognitive skills of a subset of these volunteers. "We now realize that stress hormones are a double-edged sword," concludes Meaney. People with high concentrations of cortisol in the blood remember what they learned long ago but forget things they are just told, says Sonia Lupien of McGill. This subtle memory loss resembles what occurs when a part of the brain called the hippocampus hippocampus fabulous marine creature; half fish, half horse. [Rom. Myth. and Art: Hall, 154] See : Monsters is damaged, she adds. |
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