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brain

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brain

EXERCISE MAY STIMULATE BRAIN CELLS

  
New experiments conducted on adult mice suggest that vigorous exercise may stimulate brain cell production.  Scientists at the Salk Institute for Biological Studies in San Diego have discovered that certain forms of physical exercise promoted the growth of new neurons and prolonged the survival of existing brain cells.   The study was published in Nature Neuroscience.

These surprising changes took place in the hippocampus, a small part of the brain involved in learning and memory.  The Salk researchers found that adult regularly exercising on a running wheel developed twice as many new brain cells as mice housed in standard cages.  The mice ran at their own pace and for as long as they liked.

Said neuro-biologist Fred H. Gage, senior author of the Salk study says, "Because we know now that human brain also make new cells, it jus might be that running or other vigorous exercise stimulates brain cell production in people as well".

The scientists do not know why running should have positive effect on neural development.  Gage speculated that running may increase the flow of oxygen and nutrients to brain tissues or release special growth factors that promote new neurons.  Or it may be that the primordial biology of running prompts nervous system to prepare for an onslaught of new information just as an animal navigates strange terrain while pursuing prey of fleeing from enemies.

In those situations, several experts commented, the brain respond reflexively to running by expanding its store of neurons in anticipation of new learning.

Armand Tecco, M.Ed.

Date published: April 16th, 1999

 

THINK POSITIVE! TOO MANY PEOPLE ALREADY FOCUS ON THE NEGATIVE.

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