Health is kind of like a spider web. It's a constant cause and effect scenario. If your mental health is a mess, your house may be affected by it. This will cause your physical health to deteriorate as well. Now because you are affected, your animals are going to be impacted as well as your family. They now have to pick up your slack causing their mental health to also deteriorate. Which will cause problems with friendships and jobs. Now as for this question, the community health is the big picture. If the community is healthy, the people will also be impacted. Simply, the environment being all nice and clean can affect the people which affect other people.