No matter who you are or what you do, we all have one constant companion we rely on every single day: our heart. Unseen but always at work, it beats around 100,000 times a day, keeping pace with us through every moment. Yet for something so essential to our lives, taking care of our hearts is often overlooked until it’s too late. Heart disease is the number one cause of death worldwide, 1 which is why the World Health Organization (WHO) and the World Heart Federation recognize Sept. 29 as World Heart Day . It is a reminder that the choices we make today can make a meaningful difference tomorrow. These choices don’t have to be big. From choosing when to go to bed to making time for even just 30 minutes of exercise, the small choices we make every day add up to a healthier lifestyle. The good news is that Samsung Galaxy Watch can help you make proactive prevention part of daily life. By monitoring your sleep, activity level, stress, and blood pressure, Galaxy Watch helps you better understand what’s happening in your body and what steps to take to ensure your heart is doing its job well. Understanding Your Body at a Glance: Heart Health Score The American Heart Association recommends looking at Life’s Essential 8 2 as key measures for improving and maintaining cardiovascular health: diet, exercise, sleep, weight, blood pressure, blood sugar, cholesterol and smoking cessation. But knowing what matters raises an important question: how do these factors change the choices we make every day? Samsung Health’s Heart Health Score is designed to help you in this journey. It tracks and analyzes complex health indicators such as sleep duration, daily activity level, body composition and vascular load, 3 converting them into a single, simple score that anyone can intuitively understand and follow. Think about what happens if you miss your daily exercise for a few days: your Galaxy Watch recognizes your moderate-to-high intensity activity level has decreased, reflects this change in a lower Heart Health Score, and makes a recommendation to go for a run. With convenient insights right from your wrist, Galaxy Watch delivers personalized insights that make it easier to recognize changes, understand your habits, and take the next step toward healthier ones. prev next ▲ Galaxy Watch and Samsung Health provide effortless understanding of cardiovascular wellness through the Heart Health Score (Image simulated for illustrative purposes. Actual UX/UI may differ.) Advanced Sensor Technology: From Measurement to Meaning Samsung Galaxy Watches are equipped with an advanced BioActive Sensor which integrates three precision sensors in one: an optical heart rate sensor (PPG), an electrocardiogram sensor (ECG), 4 and a bioelectrical impedance analysis sensor (BIA). With calibration just once every four weeks using a home blood pressure monitor, you can easily check your blood pressure 5 from your wrist anytime, anywhere. When you place your finger on the watch’s side electrode for just 30 seconds, the watch measures an electrocardiogram to detect signs of abnormal heartbeats like atrial fibrillation or ectopic beats. The Irregular Heart Rhythm Notification (IHRN) 6 feature, which detects abnormal heart signals, monitors the user’s heart rhythm throughout the day and provides a proactive notification if abnormal signs are repeated. Even small reminders like this have the power to save lives. In several countries, these notifications have led to early detection of risks such as atherosclerosis or myocardial infarction. ▲ Galaxy Watch supports heart rhythm monitoring through irregular heart rhythm notifications and ECG readings. (Image simulated for illustrative purposes. Actual UX/UI may differ.) Around-the-Clock Care: How Galaxy Watch Proactively Monitors Your Health Even During Sleep Your heart is a constant you can count on, and it works whether you’re awake or asleep. When you wear your Galaxy Watch to sleep, it analyzes five major vital signs: heart rat