Sources: cmch.tv/the-mediatrician-speaks-media-multitasking-and-the-brain/ and ed.ted.com/lessons/what-percentage-of-your-brain-do-you-use-richard-e-cytowic
My thoughts: lots of research now back this up - focus on one task and get it done! Two thirds of the population believes a myth that has been propagated for over a century: that we use only 10% of our brains. Hardly! Our neuron-dense brains have evolved to use the least amount of energy while carrying the most information possible -- a feat that requires the entire brain. In the second video Richard E. Cytowic debunks this neurological myth (and explains why we aren't so good at multitasking).