text: One reason schools should have students participate in one activity is because it makes students healthier and happier. Studies from John Hopkins university stated that "9 out of 10 kids are happier when they participate in activities." Which means more students are in a better mood because they're moving around and getting exercise. Getting kids to go outside can improve their mood swings. Not only does it help with mood swings, it also helps with depression. Healthier and happier students tend to be more happier in general