Originally uploaded to https://www.youtube.com/watch?v=m8rRzTtP7Tc by TEDx Talks Neuroscientist Sara Lazar's amazing brain scans show meditation can actually change the size of key regions of our brain, improving our memory and making us more empathetic, compassionate, and resilient under stress. Learn more about TEDxCambridge at http://www.tedxcambridge.com.