How to drink coffee is the most refreshing? The US military studies caffeine ideal dose algorithm to improve soldiers' alertness

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Coffee is not only the "water of life" for office workers, but now research on coffee doses is listed as part of the US military's "Secret Technology" Sleep Research Journal (Journal of Sleep Research). Us Army researchers have developed a formula to determine how much caffeine a person needs to maintain maximum vigilance.

Jaques Reifma, a senior research scientist at the US Army, claims that this is a pioneering set of formulas. According to data from the National Academy of Sciences, researchers use a mathematical model to predict the effects of sleep loss and caffeine on attention and reaction time, and combined with algorithms to determine when and how much caffeine is consumed can ensure that alertness is increased safely and to the maximum.

"We found that through this formula, subjects were 64% more alert and consumed the same amount of caffeine," Jacques said. Another theme of the study was to reduce caffeine consumption by 65%. But the effect on alertness is the same.

These calculations are carried out at the request of the US military. At present, this is still a secret technology, which will first be used in US military bases, and then may be promoted among ordinary consumers. It is reported that this algorithm requires coffee to be drunk "by the hour". To determine the dose, everyone needs to answer a series of test questions, including activity time, sleep, weight, blood pressure and other important factors, according to the Journal of Sleep Research.

According to a report in the government technology magazine, the Army has used this formula to train soldiers, and in the future, the APP, which is planned to be combined with smart phones, will be widely used in the private sector.

It is understood that in 1942, the German army printed a "medication instruction" for the so-called "Anti-fatigue Guide", which read: "(deoxyephedrine) take two tablets at a time, then do not have to sleep for three to eight hours; take it twice. It allows you to fight non-stop for 24 hours. During the period when the Germans swept through Western Europe and approached Britain, it was revealed that about 35 million amphetamines and similar substances were sent to the German Army and Air Force, which shows that fighting fatigue is also a very important part of the battle.

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