But the point is not only in the mysticism of the place where St. Petersburg is located. Nature itself has a dark aura here. Scientists believe that the Northern Capital is located at the junction of four tectonic plates: the Baltic Shield and the Russian Plate, on the one hand, and two plates on a vast northwestward fault, on the other.
The places above the faults in the earth's crust are geopathogenic. Geological faults in the earth's crust cause strong changes in the electromagnetic field at the surface. In addition, radon, a colorless and odorless radioactive monatomic gas, can come to the surface in such places. Once in the human body, radon triggers pathological processes in it that lead to lung cancer - it is considered the second most frequent (after smoking) factor that provokes this disease.
It is believed that living in geopathogenic zones negatively affects the physical and mental health of a person. People living in such zones are more likely to get sick, accidents, car accidents, man-made disasters, etc. often occur here. In St. Petersburg, from 20 to 40 percent of the city's population lives in geopathogenic zones. The Krasnoselsky District, Vasilievsky Island, Ozerki, Grazhdanka, Kupchino and areas along the Neva River are considered geopathogenic zones.
In 1995, scientists E. K. Melnikov and V. A. Rudnik conducted a study of medical statistics in the area of Grazhdansky Prospekt. Having studied the outpatient cards in polyclinics, they found that in some houses life expectancy was significantly lower than the average, and the incidence was higher. An increase in morbidity was noted for ischemic heart disease and an increase in the number of cancer patients (St. Petersburg is generally one of the leaders in Russia in terms of the number of cancer patients per thousand population). Scientists have concluded that these houses are located just on the faults of the earth's crust.
But, according to scientists, geopathogenic zones not only cause diseases, but also stimulate the creative activity of a person, and, apparently, for this reason, St. Petersburg is considered the cultural capital of Russia, and the creative activity of the population here has always been very high.