FWIW Vietnam War prisoners (Americans held in North Vietnam) strongly tended to live longer than their peers after release. Years without artificial light eatin

FWIW Vietnam War prisoners (Americans held in North Vietnam) strongly tended to live longer than their peers after release. Years without artificial light eating a basic diet and limited calories made a big difference, even without factoring out torture. In contrast the starvation diet the Japanese imposed on their WWII prisoners (from Hong Kong in particular) shortened their lives quite a bit.