For all of you working women out there who face stressful situations on a daily basis - a cup of joe might be just the thing you need to get through the day.

In a study by psychologists at Bristol University in the U.K., researchers found caffeinated coffee helped to boost a woman's performance in high-pressure environments, the Telegraph reported.

But the same does not hold true for men. In fact, male participants in the study who drank several cups of strong coffee became less confident and took longer to complete tasks.

The researchers said the findings suggest "the key to coffee's effects on the sexes lies in the way men and women respond differently to stress."

It's estimated that 100 million Americans consume about 350 cups of coffee a day.

The findings are published in the Journal of Applied Social Psychology.