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this practice and the science behind it are neither positive thinking nor another program for manufacturing positive experiences, both of which are usually wasted on the brain. This is about transforming fleeting experiences into lasting improvements in your neural net worth. The inner strengths we need for well-being, coping, and success are built from brain structure—but to help our ancestors survive, the brain evolved a negativity bias that makes it like Velcro for bad experiences but Teflon for good ones.
Hardwiring Happiness
Rick Hanson
The more we use these substances, the less dopamine we produce naturally in the brain, and the more habituated our brain cells become to the dopamine that is produced—the number of “dopamine receptors” declines. The result is a phenomenon known as dopamine down-regulation: we need more of the drug to get the same pleasurable response, while natural pleasures, such as sex and eating, please us less and less.
The Case Against Sugar
Gary Taubes
A clever follow-up study by an international team of scientists recruited a group of young women, all with normal visual acuity but some who had poor depth perception and others with good depth perception. Each woman had a catching pretest—in which she had to snag tennis balls shot out of a machine—followed by more than 1,400 practice catches over two weeks, and then a posttest. The women with good depth perception improved rapidly during the training, while the women with poor depth perception didn’t improve at all. Better hardware sped the download of sport-specific software.
The Sports Gene
David Epstein
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