Jalees Rahman in SciLogs:
A search of the PubMed database, which indexes scholarly biomedical articles, reveals that 997,508 articles were published in the year 2011, which amounts to roughly 2,700 articles per day. Since the database does not include all published biomedical research articles, the actual number of published biomedical papers is probably even higher. Most biomedical researchers work in defined research areas, so perhaps only 1% of the published articles may be relevant for their research. As an example, the major focus of my research is the biology of stem cells, so I narrowed down the PubMed search to articles containing the expression “stem cells”. I found that 14291 “stem cells” articles were published in 2011, which translates to an average of 39 articles per day (assuming that one reads scientific papers on week-ends and during vacations, which is probably true for most scientists). Many researchers also tend to have two or three areas of interest, which further increases the number of articles one needs to read.
Needless to say, it has become impossible for researchers to read all the articles published in their fields of interest, because if they did that, they would not have any time left to conduct experiments of their own. To avoid drowning in the information overload, researchers have developed multiple strategies how to survive and navigate their way through all this published data.