Not only will you be happier during a workout, you'll also be stronger if you get your caffeine on before exercising. Recent research shows that using caffeine before a workout can help your muscles produce more force. Here's how it works: Caffeine lowers your body's levels of adenosine – a substance that builds up in your muscles during exercise and causes them to contract less forcibly. If you have less adenosine, you'll have stronger muscle contractions and you'll produce more force, whether you're running, cycling, shooting hoops, or lifting weights.
Credit: Getty Images
The 2014 Adventure Issue
From Iceland's Highway 1 to Utah's Canyonlands, an epic itinerary for modern explorers.
Plus: Building a Bigger Action Hero
ON NEWSSTANDS NOW
Duke Lacrosse and the Fog of Scandal
How Thailand's Most Notorious Prison Became a Fight Club
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