It’s said that elephants never forget. Neither does radiation. The human body has a natural computer that tabulates every bit of radiation to which it is exposed during a lifetime. Radiation has great benefits in diagnosing disease when used wisely, but potentially harmful when used carelessly. So how much risk is there of developing radiation-induced cancer? 

What do dogs have that humans lack? Harry Truman, the straight-talking former president of the United States, once remarked that, “If you want a friend in Washington, get a dog.” But friendship is not the dog’s only virtue. A dog’s nose has 220 million cells that detect odours, compared to a mere five million in humans. And although none have yet graduated from The Harvard Medical School, they can often outsmart doctors in recognizing serious disease.