Answer:
If you yourself continue to be healthy and bring those options into the house, veggies, workout equipment, more sun, plants, and a clean living space, eventually they will take on those same habits and little by little, and will become more healthy. That being said, if you yourself are taking those extra steps and they are aware of it, they will start doing the same. Eventually.
PS: It may not be as much as you, but a little sun and those easy options do make a huge difference.
