Lucille has been told she needs to improve her heart health, and she's ready to get started. there are many activities she is considering for her new routine, but she knows she must first calculate her target heart rate zone. when is the best time for her to begin gathering data to do this calculation?

The best time would be right away because once she has got that information she can start planning her changes in her lifestyle to improve her heart health. First of all she should get a good nights sleep that always helps your heart health and also regularly she should get her bp checked because it is always good to know how your heart and you are feeling. Hope this helped  

Health maintenance organization

Why don't give me a problem to work with and i will you with the problem