A sense of humor is good for you means that having the ability to make light of situations or be amused or entertained by things that happen in life is beneficial to your health and wellbeing. If you can laugh at difficult or uncomfortable situations instead of getting angry or frustrated, you will be in a better mental and emotional state. To put this in perspective, have you ever heard of a laughing hyena with heart burn? A hyena is an animal that has a particularly loud and recognizable laugh, but it would be rare for a hyena to laugh if it had heart burn. This shows how important your sense of humor is— you can laugh at the difficulties of life, even when you are feeling unwell, to stay positive and avoid stress and negativity.