Practicing meditation can decrease your stress and anxiety and it can improve your ability to concentrate. Neuroscientists have found that meditation causes changes to the structure of the brain. The prefrontal cortex is a brain area involved in short term memory and decision makng. Meditation can prevent age-related decline of this brain structure!
Fun Fact: The brain is always working hard, even if you are not thinking of anything in particular, certain brain areas are active - this is called the default mode network. By decreasing the activity of this network, meditation can improve your ability to pay attention and even your health!