`  == Radiation in Helium ==  As quoted in your description of Helium you state``On Earth, helium is primarily a product of the radioactive decay of much heavier elements, which emit helium nuclei called alpha particles; it is found in significant amounts only in natural gas, from which it is extracted at low temperatures by fractional distillation``. I have a question on that subject. Does Helium retain any Radiation after processing? As a deep sea diver we breath up to 98% Helium at deeper depths in saturation diving and our cells get saturated with the element. I would like any info on this matter that you can supply.   Thank you`