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The article presents the results of a study of the causes of depopulation of the population of Ukraine and identified the relationship between changes in the demographic situation of the country and the availability of access to housing. The UN forecasts on changes in the population of post-Soviet countries are given. It is shown that the reduction in the population of Ukraine during the century will reach 45%. In the 30 years of independence, the population has shrunk by about 10 million. The most active part of women and men aged 25-35 is leaving the country. The catastrophic situation is the excess of mortality over the birth rate by more than 2 times and a significant reduction in the birth rate. Ukraine is a leader in population depopulation among European and post-Soviet countries. The average regional center "disappears" from the map of Ukraine in terms of population every year. A comparative analysis of housing construction in Ukraine and other post-Soviet countries is given. During the 30 years of independence, Ukraine has not reached the total volume of housing construction in 1990. Relative volumes of housing construction (m2 / person per year) in Ukraine are several times lower than the level of this indicator in neighboring countries. Due to lack of access to housing, more than 60% of young people aged 18-34 are forced to live with their parents. Excessively high credit rates and low wages significantly impede access to housing and lead to excessive migration outside the country. The lack of real measures to change the negative trend of population decline creates problems leading to irreversible population losses. It is proposed to implement a number of measures that will contribute to the growth of housing construction, which will have a positive impact on demographic processes in the country.

Background Studies have indicated that depressive disorders are observed frequently in dentists. It’s suggested that dentists encounter numerous sources of stress in their professional career. We noticed that the noises in dental environments are very unpleasant. The animal modeling studies suggested that stressful noise could produce depressive-like phenotypes in rodent animals. We hypothesize that the dental noise may be one of the primary stressors causing depressive disorders in dentists. Results We treated C57BL/6 mice with programmatically played wide-spectrum dental noise for 8 h/day at 75 ± 10 dB SPL level for 30 days, and then tested the behaviors. After exposure to dental noise, animals displayed the depressive-like phenotypes, accompanied by inhibition of neurogenesis in hippocampus. These deficits were ameliorated by orally administered with antidepressant fluoxetine. Conclusions Our results suggested that dental noise could be one of the primary stressors for the pathogenesis of depressive disorders and the dental noise mouse model could be used in further depression studies. Electronic supplementary material The online version of this article (doi:10.1186/s13041-016-0229-z) contains supplementary material, which is available to authorized users.