Geophysical Fields - Risks and Positive Effects

Natural radioactive fields can be of extraterrestrial and terrestrial origin. Inasmuch as the intensity of cosmic radiation is insignificant and more or less constant, living organisms are used to its presence (even at an altitude of 10 km, at which passenger planes fly. Under conditions of sunspot appearance, these values increase as much as 100 - fold. However, the most dangerous source of radiation for man and all other organisms is radon, specificically the products of its decay.