Welcome to Your Brain
Welcome to Your Brain by Sandra Aamodt is a 2008 Science & Technology book written by TED speaker Sandra Aamodt, paired here with the talk they gave.
The ten-percent-of-the-brain myth or ninety-percent-of-the-brain myth states that humans generally use only one-tenth of their brains. It has been misattributed to many famous scientists and historical figures, notably Albert Einstein. By extrapolation, it is suggested that a person may 'harness' or 'unlock' this unused potential and increase their intelligence.
The paired TED talk
Why dieting doesn't usually work (2014), the TED talk by Sandra Aamodt.