Justin

“that sleep loss increases levels of circulating endocannabinoids, which, as you may have guessed from the name, are chemicals produced by the body that are very similar to the drug cannabis. Like marijuana use, these chemicals stimulate appetite and increase your desire to snack, otherwise known as having the munchies.”
― Matthew Walker, Why We Sleep: Unlocking the Power of Sleep and Dreams

“With a full night of plentiful sleep, we have a balanced mix between our emotional gas pedal (amygdala) and brake (prefrontal cortex). Without sleep, however, the strong coupling between these two brain regions is lost.”
― Matthew Walker, Why We Sleep: Unlocking the Power of Sleep and Dreams

“A structure located in the left and right sides of the brain, called the amygdala—a key hot spot for triggering strong emotions such as anger and rage, and linked to the fight-or-flight response—showed well over a 60 percent amplification in emotional reactivity in the participants who were sleep-deprived.”
― Matthew Walker, Why We Sleep: Unlocking the Power of Sleep and Dreams

“The archaeologist James Kus, a retired professor at California State University, Fresno, believes that the Inca site of Machu Picchu may have been chosen, in part, because of the prevalence of mucosal leish. “The Incas were paranoid about leishmaniasis,” he told me. The sand fly that transmits leish can’t live at higher altitudes, but it is widespread in the lowland areas where the Inca grew coca, a sacred crop.”
― Douglas Preston, The Lost City of the Monkey God