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.
0 comments:
Post a Comment