Caffeine (1,3,7-trimethylxanthine) is the world's most widely consumed drug and its ergogenic properties have been recognised for decades. Since 2004, when it was removed from the WADA banned substances list, its use amongst athletes has increased exponentially.
The primary mechanism of caffeine's ergogenic effects is the competitive blockade of adenosine receptors. This results in an increase in sympathetic tone, vascular resistance and blood pressure.
Increased Blood Levels
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