Scientists have found that the first cup of coffee makes people feel happier and more focused. Researchers followed over 200 adults for two to four weeks to study the impact of caffeine on emotional well-being. The study found that when compared to caffeine-free ones, positive emotions went up across the board, with people feeling more cheerful, more upbeat, and motivated within the first 2.5 hours of waking after drinking coffee or tea. Caffeine can also act as a subtle timing cue for your internal body clock and reinforce natural circadian rhythms, helping you feel more alert and awake at the right time of day. It's not just caffeine, but also polyphenols and antioxidants present in the beans. Here are tips on how to make your morning cup even better for your mood.