During the study, scientists decided to find out what effect
coffee actually has on us,
whether the drink is able to cheer us up and energize us.
Live Science writes about it.
The main stimulant in coffee is caffeine, and its main effect is to change the way our brain cells interact with a compound called adenosine.
Adenosine is part of the system that regulates our sleep-wake cycle.
As we go about our business, adenosine levels rise because it is released as a byproduct of energy use in our cells.
Adenosine eventually binds to its receptor, which ultimately causes our cells to slow down, making us tired and sleepy.
During sleep, energy consumption decreases, and with it the level of adenosine - it is again converted into other forms.
That is why we feel rested after sleep.
Caffeine can actually help with sleepiness, but only for a short time.
The point is that it works by binding to adenosine receptors — essentially, it just fills in the "white spots" and prevents adenosine from binding to them.
However, the effect of caffeine is not related to the creation of any energy, but rather causes a feeling of vigor.
Earlier it became known that researchers from McMaster University in Canada were able to identify proteins that are affected
, and thanks to this, they help the liver to remove bad cholesterol from the bloodstream.
As a result, the process protects a person from the appearance of cardiovascular diseases.
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