Neither health insurance companies or visits to your doctors office are going to keep you healthy.
You're going to keep you healthy by getting exercise each day and eating less food. This must be a priority as you pass 50 years old.
The way you eat and the amount of exercise you do will determine how healthy you are. If you do one hour a day of exercise and keep the quantity of food that you eat to a acceptable minimum then your doctors visits will only be for an annual checkup, which we all need.
As for health insurance they exist in case of emergency only!!
It's not hard to do and remember,
Keep it Simple, Consistent and Fun.