Health informatics is the study of science and medicine, and how to use and store the information that has been learned and discovered over the years. In addition, it is the study of utilizing this information so that it is effective and constantly changing to adapt to new needs. The gathering of patient data is observed, practiced, and store in health informatics. How to read certain vital signs such as heart beat and breathing patterns is learned by the use of health informatics. The key to health informatics is how to manage communications between the various aspects in medicine so that everything runs smoothly and works to its fullest potential. For example, storing a patient's medical chart and assuring that the proper patient data is just one example of health informatics, but how this information is then transferred to doctors and applied in new situations when the patient needs assistance shows that health informatics does in fact work.