Drinking coffee before going to bed will delay the body clock?
Washington, September 16 (Reporter Lin Xiaochun) Coffee drinkers should be careful: if you drink two espressos three hours before going to bed, the body clock will be delayed for about an hour. This shows that most people really should not drink coffee at night, otherwise they will easily become "night owls" who do not sleep at night and do not wake up in the morning. The report was published in the American Journal of Scientific Translational Medicine on the 16th.
Researchers at the University of Colorado recruited two men and three women to participate in the trial. During the 49-day study, five people took a placebo or a caffeine pill three hours before bed, which contained the same amount of caffeine as two espresso servings.
The researchers regularly tested participants' saliva levels of melatonin, an important regulator of the body's biological clock. The results showed that compared with taking a placebo in low light, taking a caffeine pill in low light delayed the body clock by 40 minutes, while being exposed to sleep-disrupting bright light for 3 hours delayed the body clock by 85 minutes. If the strong light plus caffeine tablets, then the body clock will be delayed by 105 minutes.
Kenneth Wright, a professor at the university who led the study, said in a statement: "this is the first study to show that caffeine-the world's most widely used psychoactive drug-has an effect on the body's biological clock." it provides new insights into the effects of caffeine on human physiology. "
Wright said the result is a further illustration of not drinking coffee before going to bed, but it can also benefit some travelers, and drinking coffee at the right time can help people with jet lag adjust their biological clocks. This result is also of great significance for the development of treatments for circadian rhythm disorders.
- Prev
Ten pictures give you an instant understanding of the digital world of coffee brands.
At present, there are about 200 to 250 million potential coffee consumers in China, which is on a par with the market of the United States, the world's largest coffee consumer. The huge consumer market brings more opportunities. If you want to get a piece of the coffee market, the first thing to do is to understand the market.
- Next
Coffee video: at what time of day is it better to drink coffee? This is fastidious.
It is an indisputable fact that drinking coffee can cheer you up. However, the refreshing coffee also needs to pay attention to the time period, which must be unknown to many people. Sometimes, after we drink coffee, the refreshing effect is not obvious, why? Next, let's take a look. Http://v.qq.com/boke/page/k/0/n/k0162q172un.html needs to know if he wants to be refreshed.
Related
- Affected more than 40 cities! Starbucks employees launch an indefinite strike!
- Fortunately, employees disclosed the new black tea latte! Netizen: Replace the short extract
- The flavor difference between hand-brewed coffee at high temperature, medium temperature and low temperature can coffee be heated again
- The difference between single coffee and SOE Why are soe coffee beans more expensive? Soe acid or not
- Fruit porridge?! Chabaidao launches "Solid Poplar Branch Ganlu"
- Come with the earth! Lucky publicly announced that it will return to the United States for listing!
- A museum in Beijing launches cockroach coffee! Netizen: Don't come over!!!
- Fierce conflict! Customers and Zus Coffee clerk throw coffee at each other?!
- How long can coffee beans last after being ground into powder? How long is the shelf life of coffee powder? How to store coffee beans after being ground into powder? How many days is the flavor appreciation period for a single coffee powder?
- Note that this habit can easily make your coffee less delicious! Why is it easy to block up the water when making coffee by hand? What is the problem with uneven steaming and extraction in making coffee?