If you have a hard time managing your energy levels during the day, you may be one of the millions of people who use some amount of caffeine to help you overcome lack of focus or physical fatigue.

In this short and informative video, evidence from research in neuroscience is presented to explain how there are times of the day that drinking coffee will have the opposite effect. Avoid increasing tolerance without caffeine working for you by not consuming it during those hours of the day.