My doctor suggested drinking less coffee. Research shows 2 to 3 cups a day could be a good target. These simple tricks helped me reduce my caffeine intake, even on deadline-driven days. Hey there, caffeine enthusiasts and those of us trying to do better! We’ve all heard the mixed signals over the years: one day coffee is a miracle bean, the next it’s a one-way ticket to the jitters, or even can help or hurt our heart, depending on the research study.