NOB- Health news: A large study has concluded that it is just a myth that fatal problems like heart attack, stroke or heart failure come suddenly without any prior warning. This research has shown that more than 99 percent of people who suffer from such serious heart diseases have at least one risk factor before the event occurs. Researchers from Northwestern Medicine in America and Yonsei University in South Korea jointly conducted this study. They analyzed in depth the reasons behind these heart-related diseases, which are the leading cause of death worldwide. For this, the health information of 9.3 million Koreans and nearly 7,000 Americans was examined over two decades. The results of the study were published in the prestigious “Journal of the American College of Cardiology”. The research mainly considered four key risk factors. These are: blood pressure (BP), cholesterol, blood sugar levels (blood sugar), and tobacco use. More than 93 percent of people who developed heart disease had two or more risk factors. In particular, high blood pressure (hypertension) was the most common problem. It was found that 95 percent of victims in South Korea and 93 percent in the United States had this problem. The study revealed that even among women under the age of 60, who are generally considered to have a low risk of heart disease, 95 percent had at least one risk factor before they had heart failure or stroke. “Our study shows that exposure to one or more risk factors before these heart problems develop is almost 100 percent certain,” said DR. Philip Greenland, who led the research team. “The goal now is to focus more on ways to control these modifiable risk factors, rather than focusing on other factors that are not easily controllable,” he explained.