To be Productive Avoid Overusing Stimulants
To be at the peak of your game at work, try to limit the amount of coffee and caffeinated drinks you consume each day. While everyone responds in different ways to caffeine, the bottom line is that too much coffee or too many energy drinks can change your brain chemistry that can lead to increased anxiety.
Overstimulation using caffeine usually increases over time, so even if you don’t experience mood swings when you over-use caffeine, it still is impacting your brain, feelings and long-term productivity.