It’s true that rates of physical and cognitive impairment are age dependent but there’s all kind of variability…. Age should not be a disqualification for the presidency. A candidate’s health is important, as are sober assessments of how serious medical incidents are; it is quite common to experience a heart attack and return to normal functioning fairly quickly but more information and time will be necessary to see how Sanders will recover. Why do you think presidential candidates as old as 70 years do not want to go home?

