There has been more and more attention to the phenomenon known as radiation-induced bystander effects, which will have a tremendous effect on the research in low-dose radiation biological effects.

When we talk about people being exposed to radiation, we use units called rems or sieverts, which measure the biological effect for whole-body radiation.

The only proven biological effect of radiation at Chernobyl was an increase in thyroid cancer among those who were children at the time of exposure.