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Ten days of six hours of sleep a night was all it took to become as impaired in performance as going without sleep for twenty-four hours straight.

— Why We Sleep by Matthew Walker

Obtain anything less than eight hours of sleep a night, and especially less than six hours a night, and the following happens: time to physical exhaustion drops by 10 to 30 percent, and aerobic output is significantly reduced. Similar impairments are observed in limb extension force and vertical jump height, together with decreases in peak and sustained muscle strength. Add to this marked impairments in cardiovascular, metabolic, and respiratory capabilities that hamper an underslept body, including faster rates of lactic acid buildup, reductions in blood oxygen saturation, and converse increases in blood carbon dioxide, due in part to a reduction in the amount of air that the lungs can expire

— Why We Sleep by Matthew Walker

AMAZING BREAKTHROUGH! Scientists have discovered a revolutionary new treatment that makes you live longer. It enhances your memory and makes you more creative. It makes you look more attractive. It keeps you slim and lowers food cravings. It protects you from cancer and dementia. It wards off colds and the flu. It lowers your risk of heart attacks and stroke, not to mention diabetes. You’ll even feel happier, less depressed, and less anxious. Are you interested?

— Why We Sleep by Matthew Walker

Also be aware that de-caffeinated does not mean non-caffeinated. One cup of decaf usually contains 15 to 30 percent of the dose of a regular cup of coffee, which is far from caffeine-free. Should you drink three to four cups of decaf in the evening, it is just as damaging to your sleep as one regular cup of coffee.

— Why We Sleep by Matthew Walker

Caffeine has an average half-life of five to seven hours.

— Why We Sleep by Matthew Walker

For every day you are in a different time zone, your suprachiasmatic nucleus can only readjust by about one hour.

— Why We Sleep by Matthew Walker

It is disquieting to learn that vehicular accidents caused by drowsy driving exceed those caused by alcohol and drugs combined.

— Why We Sleep by Matthew Walker

Heroism is a label most people get for doing shit they’d never do if they were really thinking about it.”

— Abaddon's Gate by James S. A. Corey

Show a human a closed door, and no matter how many open doors she finds, she’ll be haunted by what might be behind it.

— Abaddon's Gate by James S. A. Corey

“History is made up of people recovering from the last disaster,”

— Abaddon's Gate by James S. A. Corey

“Okay,” Anna cut in, keeping her voice gentle. “Dusters are Martians. They prefer Martians. And calling people from the outer planets skinnies is also rude. Epithets like that are an attempt to dehumanize a group so that you won’t feel as bad about killing them.”

— Abaddon's Gate by James S. A. Corey

Anna never saw what started the fire, but suddenly the young man was engulfed in flames. Tilly screamed. Anna’s shocked brain only registered annoyance at the sound. Really, when had someone screaming ever solved a problem?

— Abaddon's Gate by James S. A. Corey