Multitasking - You can’t talk to someone and check your phone!

I'll just point out that even with your brain's 100 billion neurons processing information at a rate of up to a thousand times per second, you simply cannot do two tasks at the same time effectively. That is according to Vanderbilt University neuroscientist Paul E. Dux of the University of Queensland in Australia.
A central bottleneck exists in the brain that prevents you from doing two things at once, they say. Their neurological evidence shows that it's caused by "the inability of the lateral frontal and prefrontal cortex and the superior fontal cortex to process two tasks at once."
Or more simply put, "Humans can barely attend to more than one stimulus at a time and have extreme difficulty undertaking multiple tasks concurrently," says Dux, based on work in his attention and control lab.

Patti Wood, MA, Certified Speaking Professional - The Body Language Expert. For more body language insights go to her website at Check out Patti's website for her new book "SNAP, Making the Most of First Impressions, Body Language and Charisma" at Also check out Patti's YouTube channel at