A new study found that a cup of coffee a day could be beneficial for millions of Americans living with atrial fibrillation (AFib), a common heart disorder that causes palpitations that can lead to blood clots and even stroke. NBC’s Dr. Natalie Azar joins TODAY to break down the study and details who exactly it benefits. » Subscribe to TODAY: youtube.com/@TODAY TODAY brings you the latest headlines and expert tips on money, health and parenting. We wake up every morning to give you and your family all you need to start your day. If it matters to you, it matters to us. We are in the people business. Subscribe to our channel for exclusive TODAY archival footage & our original web series. Connect with TODAY Online! Visit TODAY's Website: today.com Find TODAY on Facebook: facebook.com/today Follow TODAY on Twitter: twitter.com/TODAYshow Follow TODAY on Instagram: instagram.com/todayshow » Stream TODAY All Day: today.c...