Everyone must today be saved from something—from hypertension, from imperfect digestion, from a tendency to gain weight. One is never thin enough, fit enough, strong enough. Health has its martyrs, its pioneers, its heroes and saints. Sickness and health become harder to distinguish, to the point that we risk creating a society of hypochondriacs. …

However well behaved we are, our bodies continue to betray us. Age leaves its mark, illness finds us one way or another, and pleasures have their way with us, following a rhythm that has nothing to do with our vigilance or our resolution.