There have been several reports in the news lately of healthy athletes dropping dead due to a sudden heart attack. A couple of these reports, including the most recent Boston Marathon death have mentioned athletes having caffeine in their system and some have claimed the athletes are taking a supplement which contains caffeine and the amino acid L-arginine. Caffeine alone should be used with caution in endurance training, since it can be a strong stimulant based on your metabolism and your genetics”
Read More below if you're interested
Read More below if you're interested
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