Women Benefit More From Coffee Breaks

Have you ever noticed that while Jennifer comes back from a coffee break feeling bright and energetic, Jared returns feeling sluggish and confused?

According to a new British study, this makes perfect sense: Researchers from Bristol University found that drinking coffee improves women's brain power in stressful situations, but sends men into a meltdown.

With caffeine being the most widely consumed drug in the world -- Brits alone drink close to 70 million cups of coffee each day, and U.S. workers consume at least five times as much -- researchers say the implications are "potentially staggering." They point out that many important decisions, including those made by military leaders, are often made in meetings fueled by coffee.