Being happy certainly makes life more enjoyable both for ourselves and other people we come in contact with. It may also help protect us from serious diseases. In a large study which included 14,916 person-years of observation, the researchers investigated that being happy could help prevent coronary heart disease events over a period of 10 years (Davidson KW, et al. 2010). When age, sex and cardiovascular risk factors were accounted for, it was still found that being happy and positive was protective against coronary heart disease. Feeling happy is easier said than done sometimes. Meditation is one tool you can use for working on being happier. If you do it regularly, it can help you stay in a better state of mind.