The passage between the original article and the ear of the common person is therefore a critical step, because it passes through a third person that takes care to affirm that the work is scientific.
Often this work is incomprehensible to non-professionals.
Except for cases of "bad science" (that is, inaccurate jobs, with imaginative statistical analyzes or real frauds), this is the moment when we are weaker: we must trust those who spread the news and its interpretation, because they do not we would be able to go and verify it. Yet it would be helpful for many to be able to check the news that comes to us.
The objective of this article, therefore, will be to try to make at least a little clarity between the various types of studies that can be found on PubMed, what is the weight of each type of article in everyday life and how much can we of trust a result, if not from the mathematical and statistical point of view, at least from the popular one.