Word: vasopressin
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Dates: during 1970-1979
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...chemical restore lost or weakened memory? In reports to the journal Lancet, scientists suggest that a hormone found in the pituitary gland may have that effect. The remarkable mnemonic is vasopressin, which was previously known to help regulate the body's water content. The levels of vasopressin in the blood appear to decrease after about the age of 50, just when many people begin to complain of failing memories...
...researchers gave male volunteers aged 50 to 65 three sprays of vasopressin in each nostril every day for three days. Similar volunteers who received whiffs of a dummy spray showed no response. But the concentration and memory of those who got the vasopressin improved markedly. Three patients who had suffered impaired memories after auto accidents were given doses for four weeks. One man, 55, was able to remember the dates of his accident, his marriage and other important events that he had been unable to recall before treatment...