The most popular performance enhancing drug in sports is Caffeine. Caffeine has been proven to increase the number of fatty acids circulating in the bloodstream, which enables people to run or pedal longer.
As a result, caffeine, which is legal under International Olympic Committee rules, is the most popular drug in sports. More than two-thirds of about 20,680 Olympic athletes studied for a recent report had caffeine in their urine, with use highest among triathletes, cyclists and rowers.
Caffeine Increases Endurance In Running & Cycling
Scientists and many athletes have known for years, of course, that a cup of coffee before a workout jolts athletic performance, especially in endurance sports like distance running and cycling.
Caffeine Benefits in Weight Training & Muscle Building
Caffeine reduces adenosine levels, “which then enables more forceful muscular contractions and delays fatigue.
Caffeine Benefits in Soccer & Football
In a study published in The British Journal of Sports Medicine, soccer players dribbled, headed and kicked the ball more accurately if they’d had caffeine than if they hadn’t.
For More details check out the source: New York Times Health Reports