A friend of mine said that once she tried matè, she thought she was going to have an “heart attack”.
A friend of mine said that once she tried matè, she thought she was going to have an “heart attack”.Caffeine and theine (that are the same substance) are antagonists of the adenosine receptors. During the day the levels of adenosine rise and this will give you a sense of drowsiness. By deactivating the receptors that sense adenosine tiredness will be masked. Similar receptors are present in areas of the brain that control automatic functions and there the action of caffeine will increase respiration and heart rate. -- source link
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