Maintain daily routine like getting up early in the morning and exercising (funny I haven't exercised in a while but I am seriously considering it..you too should because exercise is good for our hearts and healths generally), and of course eating breakfast, which so many people ignore, having lunch, dinner and sleep.
Instead of fried food, eat baked or steamed food. Oily foods are not good for the heart.
Take time to relax and meditate, it is very helpful for healthy life.
Drink 8 to 10 glassed of water daily. This is one of my favourites.
For those of us who use cars for mobility, there is every tendency to get lazy that we use vehicle to go a very short distance. You should walk it sometimes, like using the steps instead of the elevator.
Ensure you have a restful night.