Heart attacks and strokes rarely occur without warning.
According to health data from more than 9 million adults in South Korea and the US, nearly everyone who develops heart disease and suffers a major cardiovascular event has one of four major risk factors in the lead-up.
These factors include high blood pressure, high cholesterol, high blood sugar levels, and tobacco smoking (past or current).
Combined as a group, they preceded 99 percent of all cardiovascular events during the long-term study.
Even in women under 60 – the demographic with the lowest risk of cardiovascular events – more than 95 percent of heart attacks or strokes were linked to one of these existing risk factors.
High blood pressure was the factor most commonly tied to cardiovascular events. In both the US and Sou