Heart monitors are devices that track the heart's activity, helping doctors and patients understand heart health. They can measure heart rate, rhythm, and other important data. These monitors are often used in hospitals, but there are also portable versions that people can wear at home. There are different types of heart monitors, including electrocardiograms (ECGs) and Holter monitors. ECGs provide a snapshot of heart activity, while Holter monitors record data over 24 hours or more. By analyzing this information, healthcare providers can detect issues like arrhythmias or heart disease, ensuring timely treatment and better health outcomes.