Coffee contains caffeine, which is the most commonly consumed psychoactive substance in the world.
Many biologically active substances found in coffee beans find their way into the final drink.
This caffeine works by stimulating the brain and central nervous system, helping you to stay alert and preventing the onset of tiredness
Caffeine works by stimulating the nervous system, sending direct signals to the fat cells, telling them to break down fat.
It does this by increasing blood levels of the hormone epinephrine.
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