Starting as long ago as 1978, researchers have been publishing caffeine studies. And in study after study, they concluded that caffeine actually does improve performance. In fact, some experts, like Dr. Mark Tarnopolsky of McMaster University in Canada, are just incredulous that anyone could even ask if caffeine has a performance effect.
“There is so much data on this that it’s unbelievable,” he said. “It’s just unequivocal that caffeine improves performance. It’s been shown in well-respected labs in multiple places around the world.”
I start my day with 20 ounces of coffee before biking 7.5 miles into work (weather permitting). I thought I was just being stubborn & not willing to give up my coffee addiction. Growing up I always heard about how bad coffee was, and how it dehydrated you and was bad for athletes and all that. It's nice to know I'm doing something right!