FILE -In this Aug. 18, 2012 file photo, Republican vice-presidential candidate Rep. Paul Ryan, R-Wis. speaks in The Villages, Fla. Paul Ryan works out and watches his diet, but clean living can only ... more 
FILE -In this Aug. 18, 2012 file photo, Republican vice-presidential candidate Rep. Paul Ryan, R-Wis. speaks in The Villages, Fla. Paul Ryan works out and watches his diet, but clean living can only go so far when there's a strong family history of heart disease. The largest study ever of heart risks in families finds that having a close relative die young of cardiovascular disease doubles a person's odds of developing it at an early age. Three generations of Ryan men have died in their 50s of heart attacks. (AP Photo/Phelan M. Ebenhack, File) less 
1 / 25
Associated Press | Photo By Phelan M. Ebenhack, File
Mon, Aug 20, 2012 3:57 PM EDT