Scottish scientists from the University of Abertay conducted a study and proved that the knowledge of several languages is not an indicator of high intelligence. Previously it was thought that people fluent in several languages, much smarter than their peers, knowledgeable 1-2 language.
Researchers divided the volunteers into three groups. In the first group were multilingual people in the second group - the polyglot, the third - the people who knew two dialects of the English language. As it turned out, all the prejudices and assumptions about the level of intelligence in three groups - no more than a myth.
Note that learning new languages is useful. This trains the memory, opens up new vistas for travel and explore the culture of the countries. Learning something new allows you to keep a clear mind to old age and to protect themselves from intellectual degradation.