Deep in the Earth, a series of experiments is revealing how life suffers when it’s deprived of background levels of radiation. In 1987, a group of researchers in France discovered something peculiar.

Background radiation is the invisible radiation that is always present in our environment. It comes from a variety of sources, both natural and man-made. Natural sources include cosmic rays from space ...

Surprisingly, exposure to a high background radiation might actually lead to clear beneficial health effects in humans, according to Ben-Gurion University of the Negev and Nuclear Research Center ...