Did you know that everything and everybody around us is radioactive? Should that concern you? The only way to answer these questions for yourself is to get some facts about radiation and radioactivity. Plexus-NSD has prepared a brief introduction to these concepts and more. We recommend you swipe over the “Radioactivity Basics” selection on the gray bar at the top of this page, start with the tutorial on ‘Basic Concepts’, and then work your way through the rest of the topics that interest you. After you finish your review, don’t hesitate to ‘Ask a CHP’ if you have additional questions.