Researchers were told what the product helps to increase intelligence MOSCOW, 21 Dec — RIA Novosti. Scientists from the University of Pennsylvania proved that eating fish increases intelligence and promotes better sleep. The study was conducted among children, the results published portal Eurekalert. Earlier studies showed the influence of fatty acids omega-3 contained in fish, on mental activity, however, the relationship between increasing IQ and improving sleep has been understudied, the authors of the work. The study involved 541 children from China aged 9 to 11 years — 54% were boys, 46% girls. They answered the question how often they eat fish, and then tested for level of intelligence. At the same time their parents rated quality of sleep in children by answering the relevant questions of scientists. According to the test results it was found that children who ate fish at least once a week, we recorded fewer sleep