Did you know that you are naturally radioactive? No lab accident required.

All atoms naturally decay over time and release gamma rays, and that includes the atoms in your body. The heaviest atoms commonly found in humans, such as calcium and potassium, decay at a rate that causes most humans to emit hundreds of gamma rays every second.

This is nothing to be concerned about, as low levels of ionizing radiation are actually noted to be healthy for humans. This amount is also measurably less than the natural background radiation of our planet.