FILE - In this Sunday, Sept. 27, 2015 file photo, former President Bill Clinton pauses at the Clinton Global Initiative, in New York. Leading a country comes with extraordinary privileges, but that apparently comes at a price: new research suggests that heads of state age faster than normal and that the stress may shave almost three years off their life expectancy. Doctors analyzed how long presidents and prime ministers in 17 countries - including Britain, Canada, France, Germany and the U.S. - survived after leaving office, compared to the losing candidates. They also observed the number of years heads of state lived versus what was expected for someone of the same age and gender. Clinton’s admitted weakness for fast food may have resulted in “stress eating,” Jena said. “Maybe if there had been world peace, his lifestyle would have been different.” After leaving office, Clinton had bypass surgery; he subsequently said he became vegan to try to reverse his heart disease. (AP Photo/Mark Lennihan, File)