Talmud-ist Maimonides (1138-1204) urges to make exercise: One should work or exert himself in some other way. The rule is that he should engage his body and exert himself in a sweat-producing task each morning. Afterwards, he should rest slightly until he regains composure and [then, he should] eat. If he were to bathe in hot water after exerting himself, it would be beneficial. Afterwards, he should wait a short while and eat.