This article's claim is that having hobbies increases an individual's happiness compared to those without hobbies. While this article is short, right away I can tell that it is a trusted source as it was published by the Harvard School of Medicine. The author, Heidi Goodman, has a good reputation and has been honored by multiple organizations such as the American Heart Association. This article does a good job of naming the studies it refers to. The study used as an example in this article was conducted by , and was very thorough as researchers combed through five large studies across over 16 countries, involving more than 93,000 people. This study also took place over time with researchers following their subjects for four-eight years. Nature Medicine is also a very reliable research journal and the case study is very thorough and impressive. Based on the publication of this article, and the case study itself, I would that the evidence proving this claim is present and the people reporting this evidence are reliable. Therefore, I believe that this claim is true.