Everything you do and everything you deal with have potential risks. Living your life is to constantly assess risks in relation to benefits and necessity. In order to make it easier for ourselves to make important decisions, we generalize and simplify. When probabilities become big numbers, sometimes hard to understand, we sometimes to fall back on emotional decisions and to act in a way that we usually do.
It is the same thing when you have to make a decision about treatment of a health issue. The benefits of the treatment must be weighed against any potential risks.
So, let's try to put probabilities into perspective. Let´s start with something we all have heard about, but very few have experienced.