Inderscience Publishers

Hormesis in humans exposed to low-level ionising radiation

Radiation hormesis is the stimulatory or beneficial effect of low doses of ionising radiation. Data from animal experiments and human experiences suggest common mechanisms of the protective role of hormesis in radiation induced cancer. Through various studies, it is established that whole body exposure to low-level ionising radiation (LLIR) decreases overall cancer incidence (the most important long-term somatic effect of radiation exposure). In this paper, a comprehensive study and analyses of the available historical and scientific data and reports (both laboratory and epidemiological), that relate to LLIR are summarised and presented. This leads to the substantially acceptable conclusion that whole body exposure to LLIR reduces cancer mortality rates when compared with control populations in both experimental animals and humans.

Keywords: radiation, health, hormesis, adaptive response, epidemiological

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