
But it’s worth asking the opposite question – if exercise helps the brain, does stopping exercise hurt the brain?
Most studies looking at its benefits find increased white matter and neuron connections in long-term exercisers. Even short term studies find increases resulting from a 3 days/wk routine. But along comes a study out of the University of Maryland that found stopping does indeed diminish the blood flow to important parts of our brains in older people who exercise regularly.
After a mere 10 days- that is, 1.5 weeks – sedentariness may initiate unfavorable changes in the brains of middle age and older active people!

Use It Or Lose It: Stopping Exercise Decreases Brain Blood Flow
To be fair, the study could not state that these changes were permanent or detrimental. But it does get your attention: use it or lose it happens above the neck not just below it.













