Experts from the University Copenhagen found: infectious diseases reduce human intelligence. 20 years it took a rocket scientist to investigate the functional state of the brain 190 thousand people and to associate the received data with their health.
Each hit to the hospital with infectious disease reduced the level of intelligence of a person on average of 1.76 points. Being in the hospital more than five times about infections reduced IQ by almost 10 points from the mean.
Particularly strong on intelligence was influenced by a serious illness. Meningitis, for example, can result in disability and irreversible damage to the nervous system. So if you suspect that you should call a doctor or ambulance.