Restraint never ruins one's health. What ruins it,is not restraint but outward suppression. A really self-restrained person grows every day from strength to strength and from peace to more peace. The very first step in self-restraint is the restraint of thoughts.
Theologians consider that it was the sin of pride, the sinful thought conceived in an instant: non serviam: I will not serve. That instant was his [Lucifer's] ruin.
The gods are strange. It is not our vices only they make instruments to scourge us. They bring us to ruin through what in us is good, gentle, humane, loving.