A new study by psychologists at Bristol University suggests that women should swap herbal teas for strong coffee if they want to get ahead of their male counterparts at work.

The study found drinking caffeinated coffee boosts a woman's performance in stressful situations but has the opposite effect on men, reports the Telegraph. They become less confident and take longer to complete tasks once they have downed several cups of coffee. Caffeine in coffee is a known stimulant, which works on the brain and can combat drowsiness and fatigue.