A long and detailed YouTube video by Kyle Hill about how an outdated principle of “there is no safe level of ionizing radiation” still pervades nuclear and radiation policy in spite of continuously mounting scientific evidence to the contrary, contributing to unnecessarily great caution with things like medical imaging, and to negative public perception and panic regarding nuclear power.

The TL;DW is that there is a mountain of evidence that small doses of radiation are harmless due to the body’s natural defenses and self-repair mechanisms, and in fact according to many studies small doses may in fact reduce the risk of cancer compared to baseline rather than increase it (a phenomenon known as hormesis).