Is Hillary Clinton too prone to blood clots to be president? No. But the question will be asked and ought to be asked. Health matters. Endurance, as a quality of health, matters more than other qualities, like the propensity for certain types of cancer. Christie has proven by his actions as governor that he can endure a punishing schedule. Being president is tougher than being governor. It is stressful. Being overweight in high-stress jobs is not pleasant, it taxes the body, and it increases the likelihood that he’ll have a heart attack. (He’s not a ticking time bomb; the actual chances of any one person who is fat and in a stressful job having a heart attack are not insignificant but not necessarily in the realm of “likely” either.)