Coffee is one type of drink that most people like, either in the morning, afternoon, afternoon, until the evening. The morning after waking up, people have been looking for coffee, to be more eager in the day, he said. At night before bedtime, many people also consume coffee, can for friends stay up or just out of habit. Apparently, coffee has become part of the pattern of life. However, too much coffee is not good for health and can also change your mood. Instead of making you more excited, coffee can also make you at risk of anxiety. Yes, it turns out coffee can have good and bad impact on one's mood.