General Health is a function of a number of circumstances such as:
These are things that can affect the quality of your life, and possibly the length of it as well.
Diet and Exercise are probably front and center in terms of things to be done at the personal level. Together they help determine you over health in terms of such things as nutrition, physical condition, weight, etc.
Personal Care gets into more specific things as Dental and Vision, and often involve periodic interaction with Health Professionals.
Environmental Concerns tend to focus on matters of safety, such as the presence of toxins.