"If you live to 90, then 32 years will have been spent entirely asleep."
"Well, of course, we use Thomas Edison’s light bulbto invade the night, and we occupied the dark, and in the process of this occupation, we’ve treated sleep as an illness, almost."
"There are dozens of different ideas about why we sleep"
"Essentially, all the stuff we’ve burned up during the day, we restore, we replace, we rebuild during the night."
"What about energy conservation? Perhaps intuitive. You essentially sleep to save calories."
"Sleeping at night enhances our creativity."
"In the brain, those neural connections that are important, those synaptic connections that are important, are linked and strengthened, while those that are less important tend to fade away and be less important."
"In the 1950s most of us were getting around about eight hours of sleep a night. Nowadays, we sleep one and a half to two hours less every night. For teenagers, it’s worse, much worse. They need nine hours for full brain performance, and many of them are only getting five hours of sleep."
"The quality of sleep that you get as a night shift worker is usually very poor, again in that sort of five-hour region."
"If you are a tired brain, the brain is craving things to wake it up. Caffeine represents the stimulant of choice across much of the Western world."
"If you sleep around about five hours or less every night, then you have a 50 percent likelihood of being obese. Sustained stress from sleep deprivation leads to suppressed immunity, and so tired people tend to have higher rates of overall infection, higher rates of cancer, and diabetes 2."
"Make your bedroom a haven for sleep."