Quote of the Day “Take dolphins and whales, for example. Their sleep, of which there is only NREM, can be unihemispheric, meaning they will sleep with half a brain at a time! One half of the brain must always stay
Quote of the Day “If you wake up at eight a.m., but don’t go to bed until two a.m., then you lose a significant amount of deep NREM sleep. Similar to an unbalanced diet in which you only eat carbohydrates
Quote of the Day “To impress upon you the effects of caffeine, I footnote esoteric research conducted in the 1980s by NASA. Their scientists exposed spiders to different drugs and then observed the webs that they constructed. Those drugs included
Quote of the Day “Levels of circulating caffeine peak approximately thirty minutes after oral administration. What is problematic, though, is the persistence of caffeine in your system. In pharmacology, we use the term “half-life” when discussing a drug’s efficacy. This
Quote of the Day “Caffeine works by successfully battling with adenosine for the privilege of latching on to adenosine welcome sites—or receptors—in the brain. Once caffeine occupies these receptors, however, it does not stimulate them like adenosine, making you sleepy.
Quote of the Day “You can artificially mute the sleep signal of adenosine by using a chemical that makes you feel more alert and awake: caffeine. “Caffeine is not a food supplement. Rather, caffeine is the most widely used (and
Quote of the Day “At this very moment, a chemical called adenosine is building up in your brain. It will continue to increase in concentration with every waking minute that elapses. The longer you are awake, the more adenosine will
Quote of the Day “It was in 1729 when French geophysicist Jean-Jacques d’Ortous de Mairan discovered the very first evidence that plants generate their own internal time. “De Mairan was studying the leaf movements of a species that displayed heliotropism:
Quote of the Day “Setting aside the extreme case of sleep deprivation, how do you know whether you’re routinely getting enough sleep? An easy rule of thumb is to answer two simple questions. “First, after waking up in the morning,
Quote of the Day “There are two main factors that determine when you want to sleep and when you want to be awake. As you read these very words, both factors are powerfully influencing your mind and body. “The first