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Hormone May Boost Aging, Failing Brains, University of Washington and VA Puget Sound Health Care System Study  
8/8/2012 7:20:27 AM

A small U.S. study suggests daily hormone injections may boost mental agility in older people with and without mild cognitive problems. People who got growth hormone-releasing hormone (GHRH), as opposed to inactive injections, improved on tests of attention and concentration skills - what psychologists call executive function.