Laughter and the Immune System

What if you could rid yourself of disease just by laughing? What if you could forget about the expensive treatments and risky procedures? What if there is a chance that all of that could actually happen? In the literature review, "Laughter and the Immune System", the author talks about the potential benefit to your health of laughter. Although it is not proven by extremely credible sources, it is speculated and proven in some aspects that laughing can help boost you personal health and the strength of your immune system. Although the scientific evidence is not solid, I personally believe that laughter does indeed help you health. Laughing has always had a reputation for making people feel better, even in the darkest of times. So why can't that happen with your personal health too?