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NLP represents the automatic handling of natural human language like speech or text. The discipline focuses on the interaction between data science and human language. Today NLP is booming thanks to the huge improvements in the access to data and the increase in computational power. NLP enables the recognition and prediction of diseases based on electronic health records and patient’s own speech. This capability is being explored in health conditions that go from cardiovascular diseases to depression and schizophrenia. Companies like Yahoo and Google filter and classify emails with NLP by analyzing text in emails.