Neurochemical Boosts Aging Brains, Study Says

From Times Staff and Wire Reports

Aging brains may be sharpened and, in effect, made young again briefly by increasing the levels of a neurochemical called GABA, a study suggests.

Researchers at the University of Utah found that GABA appears to help extremely old rhesus monkeys focus their vision and thinking processes by silencing the interfering static from other neurons. GABA screens out stray brain signals that may make thinking and seeing difficult in older brains, according to the study published Friday in the journal Science.