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Identical Twin Study Reveals How Exercise Dramatically Affects Body and Brain

Wednesday, 04 March 2015 04:11 PM

Exercise affects the health of the body and brain, perhaps more than genetics, according to a new study of identical twins in Finland.
 
Researchers who studied 10 pairs of twins — who shared the same physical activities as youngsters but developed different exercise habits as adults — were found to have dramatically different bodies and brains as they grew older, The New York Times reports. 
 
For the study, published this month in the journal Medicine & Science in Sports & Exercise, researchers at the University of Jyvaskyla and other institutions in Finland tracked 10 sets of identical male twins — one of whom regularly exercised, while the other did not.
 
The scientists measured the men’s endurance capacity, body composition, and insulin sensitivity, and scanned each twin’s brain.
 
When they compared the twins’ results, they found the sedentary twins had lower endurance capacities, higher body fat percentages, and signs of insulin resistance, signaling the onset of metabolic problems.

The brains of the active twins also had markedly more grey matter than the sedentary twins, especially in areas of the brain involved in motor control and coordination.

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Exercise is a bigger factor in the health of the body and brain than genetics, according to a new study of identical twins in Finland.
twin, study, brain, brawn, body, mind
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2015-11-04
Wednesday, 04 March 2015 04:11 PM
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