To question something you first need to know what you are talking about. Since you don't it is pretty pointless to listen to you questioning something you don't even understand. Questioning the current scientific knowledge is done constantly in the scientific community, the studies are there for this, but neither you nor me have the correct scientific knowledge to actually understand them because we didn't spend our life learning how biology works. All we can do is trust scientists and doctors who know what they are talking about... that is why when you are sick you go to a doctor or a hospital for advice, not "questioning" on online forums with strangers that know near to nothing about what they are talking about.