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Int J Radiat Biol. 1990 Dec;58(6):1035-43.

Apparently beneficial effect of low to intermediate doses of A-bomb radiation on human lifespan.

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  • 1Scientific Data Center for A-Bomb Disaster, Nagasaki University School of Medicine, Japan.


Among about 100,000 A-bomb survivors registered at Nagasaki University School of Medicine, 290 male subjects exposed to 50-149 cGy showed significantly lower mortality from non-cancerous diseases than age-matched unexposed males. This was deduced from the fitting of a U-shaped dose-response relationship. Reasons for this effect in males, but not in females, are discussed with reference to selection of individuals and to hormesis.

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