Coffee is almost everyone's favorite, whether it is to get you up and moving in the mornings, especially when the winter comes in, or to ensure your productivity is at best, or for when you hit the gym. And, if you are wondering to drink it or not with heart disease, the good news is, you can! A new study published in JAMA Network says so.Traditionally, coffee has been associated with being a troublemaker, however, this thing could soon be put in past, as scientists are now asking people to drink coffee, because it might actually be good for their heart. In a first-of-its-kind clinical trial, researchers found that a daily cup of caffeinated coffee could actually protect the heart. What Was The Study?The study is led by researchers from UC San Francisco and the University of Adelaide. The study noted that drinking coffee every day may reduce the risk of Atrial fibrillation or A-Fib. Published in JAMA Network, the study said that coffee worked best against the condition, which is an irregular and often rapid heart rhythm that causes symptoms like palpitations, fatigue, and breathlessness. All of these could significantly increase the risk of stroke and heart failure. It is caused by chaotic electrical signals in the upper chambers of the heart – known as atria, which leads to ineffective blood pumping and can cause blood clots to form.Till now, those with A-Fib were advised not to drink caffeine out of fear that it may trigger symptoms. However, this trial – named DECAF - concluded that drinking a cup of caffeinated coffee a day reduced the deadly condition by 39%. What Are The Experts Saying?As per the researchers, and other scientists, coffee increases physical activity and reduces atrial fibrillation. Since caffeine is a diuretic, it potentially reduces blood pressure and, in turn, lowers the risk of A-Fib.“There are many other ingredients in coffee that also have anti-inflammatory properties with positive effects,” said senior author Dr Gregory M. Marcus, who holds the Endowed Professorship in Atrial Fibrillation Research and is an electrophysiologist at UCSF Health.How Was The Study Conducted?Researchers wanted to understand how coffee affects people with A-Fib, so they enrolled 200 coffee drinkers who had persistent atrial fibrillation or atrial flutter. All of them were already scheduled for electrical cardioversion, a procedure that uses a controlled electric shock to reset the heart’s rhythm.Participants were randomly split into two groups. One group had to drink at least one cup of caffeinated coffee or an espresso shot every day. The other group had to avoid all coffee and caffeine for six months. By the end of the study, the coffee group had a 39 percent lower risk of A-Fib coming back. They also showed signs of reduced inflammation.The researchers suggested that coffee might help simply because it replaces less healthy drinks. “The results were astounding. Doctors have long told patients with A-Fib to cut back on coffee, but this trial suggests coffee is not only safe but may actually protect the heart,” said lead author Dr Christopher X. Wong of UCSF and the University of Adelaide and Royal Adelaide Hospital.