From "coffee + nap" to the best "coffee time", is coffee good for sleep?

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Love and hate often go hand in hand, coffee is such a good example, it can be described as the depth of love and hate. The taste of coffee is adorable, but caffeine compensation (Caffeine withdrawal) is disturbing [1]. Once, like some friends, I had a cup of strong coffee in the morning or when I felt tired, hoping to keep or restore my freshness, but often things went against my wishes, and the sense of burnout came easily, but it couldn't go away. The "inaction" of coffee is very disappointing, and I can't help but wonder, is it not coffee that you drink? what's the problem?

Love and hate seem to come easily, but go slowly, just because of the truth. The feeling of hate is always real, and the perception of love is so easy to be blindly stubborn. "hate" is born of "good", "love" and "bad". Similarly, because of "good", because of "love", but also because of "bad" love. So, "coffee is not bad, people don't like it"? become entangled in. This is reminiscent of what Scott Alexander said.

"All good is hard. All evil is easy. Dying, losing, cheating, and mediocrity is easy. Stay away from easy. "

Coffee is good and a little "evil". It seems to touch what Scott calls "evil", and far more than that [1]. Stay away from it? It's hard! Coffee is unfortunate and lucky!

The refreshing effect of a cup of coffee comes from its ingredients, caffeine, which is no longer a secret, but there are still many mysteries about its relationship with the human body, because the physical / psychological processes involved are complex, but people are constantly recognizing it. Thanks to the researchers [2]. For non-professional coffee users, it is probably not difficult to understand a simple one. It is known that caffeine enters our bloodstream through coffee and then enters our brains. Caffeine is similar to a molecule in the body called adenosine (adenine nucleoside). Adenosine is a by-product of brain activity, which, if we keep using the brain, causes it to increase and bind to brain cell receptors, resulting in fatigue and drowsiness. Caffeine molecules, on the other hand, can replace adenosine and bind to the same brain cell receptor, blocking the binding to adenosine, making people less likely to feel tired for a period of time. However, the effect of coffee is not immediate, there is a lag of about 20 minutes.

Recently, a very efficient method of "nap" has been introduced from the VOX website, called coffee naps (coffee nap), or translated directly into "coffee lazy do not think". The traditional nap has something to do with contemporary coffee. Scientific experiments have shown that napping or coffee alone is not as effective as napping plus coffee in fighting burnout. Indeed, at first, it sounds like coffee + sleep is a little out of tune, because it deviates from the original intention of coffee: fresh and sleepless. The truth is, a 20-minute nap is exactly the time it takes for the brain to empty the adenosine, but the deep sleep that follows allows the adenosine to more or less return to the level of the brain's leisure state. Therefore, it can be said that coffee nap is the use of caffeine intake lag time difference, to reduce the adenosine in the body to a minimum.

Whenever a person is a little tired, want to borrow coffee refreshing, the effect may be limited, more just to ease, at this time Sleep coffee has the opportunity to show their talents, become a perfect match to reduce burnout and keep fresh. Similarly, when the engine of a long-distance driving trip is started, it is also time to drink coffee, tired midway, coffee and nap, and the recovery of attention is very good. So there is such a personal experience, when waking up from a tired nap, there is a feeling of "sinking the boat" has passed ten thousand mountains.

The efficacy of coffee naps also suggests the best time to drink coffee, obviously, before burnout begins. A cup of coffee in the morning is undoubtedly the best time of day. Considering that the half-life of caffeine in the body is about 5 hours, it would be perfect to have a cup of coffee and coffee naps at noon. However, things are always more complicated than you think, and the caffeine intake has something to do with our bodies' hormones called cortisol, also known as stress hormones. How is "before burnout begins" defined? It may be natural to follow your feelings, but what is the truth behind it? Researchers have discovered the secret between caffeine and cortisol, making coffee lovers' choice of coffee time more "reasonable".

The right amount of cortisol (cortisol) is good for us, making people properly anxious and alert enough. When you get up in the morning, the cortisol in the body is at its peak, and caffeine encourages the body to release more cortisol, making people feel more anxious and tired, so it is not suitable to drink coffee immediately after getting up in the morning, such as after 10:00AM. But faced with another peak of endocortisol at noon, it is best to drink coffee after 2:00PM. Considering the half-life of caffeine, the cut-off time for afternoon coffee, such as 11:00PM rest, should be around 5: 00pm without affecting sleep.

For coffee users, they will feel when it is coffee time, because, in this "love and hate" atmosphere, slowly grinding coffee, but also slowly grinding themselves, slowly into the delicate and fragrant, becoming both rational and passionate. Over time, they seem to have something in common, or they just don't realize it, or they can only understand it, but can't put it into words. Isn't it? Whenever you are in a good mood, how can you let it slip away easily? it must be the time to "put the cup before incense". When I overheard the following country song, I don't know whether to sing for her or for coffee? Love is also you, hate is also you, like the title of the song, "WORKING ON ME"!