Radiation—the word itself can bring shivers to even the most hardy individuals, but it shouldn't. As Mark Twain said, “It isn't what we don't know that causes the problems, it's what we think we know that just isn't so.” The fear of radiation comes from the many doomsayers that have used an unwitting press and public to their advantage for decades.
Radiation exposure extends lifespan. There is no question that high amounts of radiation are harmful, but low amounts are beneficial to humans and animals. This is the concept of hormesis which applies throughout nature. Hormesis means that high and low doses produce opposite effects, with low doses providing beneficial effects and high doses the opposite.
