Daily LeaderboardsOne of the best ways to stay healthy is to involve your community, and one of Cardiogram’s most frequently requested features is the ability to compete with friends on your step counts. With the Daily Leaderboard, you can compete with friends, track each other’s progress throughout the day, and challenge each other to be more active. This makes staying …

Much of our knowledge about exercise comes from small-scale studies done in controlled research conditions. But with tens of millions of us wearing heart rate sensors, like Apple Watch, we can now measure key biomarkers like resting heart rate or heart rate variability continuously. And, more importantly, we can start to figure out which workout routines really drive results. New …