Being overweight is less likely to cause a heart attack or kill you than it is to increase your risk of diabetes, according to a new study of identical twins, the American Heart Association News reports.
Researchers used a nationwide Swedish twin registry to find twin pairs with identical DNA but different body mass indexes, or BMIs. While conventional medical wisdom has long suggested that heavier people are more likely to have premature heart attacks than lean people, the new study suggests otherwise.
The research, published online recently by JAMA Internal Medicine, followed more than 4,000 genetically identical twin pairs with differing BMIs from March 1998 to January 2003, and followed up with them through 2013. The study compared the risk of heart attack, death and Type 2 diabetes. Read more