Mitt Romney's tax returns will get far more attention. But for those more curious about medical issues, here are links to the physician's letters on  Romney's and Paul Ryan's health. 

Unsurprisingly, both men are deemed very healthy. Romney "appears years younger than his age," his doctor says. Ryan is in "excellent" condition, his doctor says. 

Romney has hyperlipidemia (too much fat in his blood) and an enlarged prostate. He is allergic to penicillin. He takes the cholesterol-lowering medication Lipitor and low-dose aspirin daily. 

Ryan occasionally uses an albuterol inhaler. According to spokesman Brendan Buck, the congressman does not have asthma but sometimes experiences respiratory congestion during allergy season.