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Research: 40=downhill slide

Think you are in your peak while still in your 40's?
Think again.

New research from UCLA suggests that in middle age, even healthy people begin to lose some of that insulation in a motor-control part of the brain . They loss is occuring at the same rate that their speed subtly slows.

According to the researchers, the part in charge of motion may start a gradual downhill slide at age 40. How fast you can throw a ball or run or swerve a steering wheel depends on how speedily brain cells fire off commands to muscles. Fast firing depends on good insulation for your brain's wiring.

The researchers say that it is a reason to stay physically and mentally active: An exercised brain may spot fraying insulation quicker and signal for repair cells to get to work.




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