Did you know that bananas are radioactive? That's right - this humble fruit that we all know and love contains small amounts of naturally occurring radiation. But before you throw away your banana stash, let's take a closer look at what this really means. First, it's important to understand that radiation is all around us. We're exposed to it every day from sources like the sun, the earth's crust, and even our own bodies. And while high levels of radiation can be dangerous, the amount of radiation in a banana is so small that it poses no harm to humans. In fact, the radiation in a banana comes from a naturally occurring isotope of potassium called potassium-40 . This isotope is present in many foods and even in our bodies, and it's one of the reasons why bananas are such a great source of potassium. But just how much radiation does a banana actually contain? On average, a single banana contains about 0.1 microsieverts of radiation. To put that into perspective,