Originally Posted by berny
Researchers at the Cardiovascular Centre at the University Hospital, Zurich, recently found that a caffeine dose corresponding to two cups of coffee (200mg) significantly reduced exercised-induced myocardial blood flow during cycling.
My coach is a caffiene nazi as in "Zero intake is good". High caffiene input allows caffiene to displace other key compounds in your muscles, reducing their capacity to do good things.
Prolonged high doses also affects sleeping patterns, which means poor recovery.