Explanation of Caffeine and Preworkouts  If you often use a cup (or two) of coffee or preworkout to motivate you to get active, you may be posing a risk to your health. It’s actually counterintuitive to getting into better shape and building muscle. Not a “coffee” drinker? Did you know that there is more than triple and sometimes even 5 times the amount of caffeine in most pre-workout supplements? The average serving packet of pre-workout can pack up to 500mg (up to 5 cups of coffee worth) of…