I’ve always advocated taking responsibility for your own health. But until recently, it was difficult to monitor your heart without a costly visit to your doctor for an ECG, or the uncomfortable—and expensive—ordeal of wearing a Holter monitor for days or weeks. Now, the HeartCheck Pen, the only device of its kind cleared by the FDA for consumer use, makes it possible to monitor your heart health at home and get reports from a physician remotely, at a fraction of the cost.