The Huffington Post | Riddhi Shah
Quite literally, sustained meditation leads to something called neuroplasticity, which is defined as the brain's ability to change, structurally and functionally, on the basis of environmental input.
For much of the last century, scientists believed that the brain essentially stopped changing after adulthood.
But research by University of Wisconsin neuroscientist Richard Davidson has shown that experienced meditators exhibit high levels of gamma ray activity and display an ability -- continuing after the meditation session has attended -- to not get stuck on a particular stimulus. That is, they're automatically able to control their thoughts and reactiveness.