Introduction: To evaluate whether the hypothesis that estrogen levels are associated with temporomandibular disorders (TMD) in humans can be confirmed or contradicted by available literature. Material and methods : A systematic review based on the content of PubMed, Scopus, and Cochrane...

The aim of this study was to assess the quality of life (QoL) of infertility treated women as it can affect the effectiveness of therapy. This cross-sectional study was conducted with Abbreviated World Health Organization Quality of Life questionnaire (WHOQOL-BREF), Fertility Quality of Life tool (FertiQoL) and an author’s questionnaire. The study included 1200 women treated for infertility without the use of assisted reproductive technology (non-ART), intrauterine insemination (IUI), or in vitro fertilization (IVF). The control group was 100 healthy women who had children. The time to conceive did not significantly differ between study groups and was 3.1–3.6 years, on average. The quality of life in the WHOQOL-BREF questionnaire data significantly differed between study groups and the control (physical domain p < 0.001, psychological p = 0.009; social p = 0.004; environmental p < 0.001). A significant effect was found in 4 FertiQoL subscales: emotional, biological, partnership, and attitude towards treatment; depending on the method of treatment. Women who received non-ART treatment evaluated their QoL in significantly more negative terms in these 4 subscales, compared to those treated with IVF. The quality of life depends on reproductive problems, methods of infertility treatment, age, place of residence, and education level. Prolongation of the duration of treatment unfavourably affects the quality of life. The quality of life of women undergoing infertility treatment differs according to the mode of work and having children from a previous relationship.

Introduction: Hemispheric asymmetry of the central nervous system affects various features of the brain involved in cognitive ability. Functional asymmetry, such as different hearing ability in the left or right ear, will also affect cognitive processes.Material and methods: The aim of this study was to assess how intelligence measures and cognitive abilities in children and adolescents might have been affected by hearing deficits in the left or right ear. The study involved 208 children, 126 who were in an experimental group and 82 in a control group. In the experimental group, there were 26 children who were diagnosed with right-sided hearing loss, 34 with leftsided hearing loss, and 66 with bilateral hearing loss; all children in this group had used hearing devices since diagnosis. We assessed hearing unilaterally and bilaterally and looked for asymmetries in terms of intelligence measures and visual and spatial functioning.Results: Children with bilateral hearing impairment had lower intelligence compared to those without impairment. Children with unilateral hearing impairment had similar intelligence level compared to well hearing children. Children with left-sided hearing impairment had higher intelligence compared to those with right-sided hearing impairment and lower nonverbal intelligence compared to well-hearing children. Children with right-sided hearing impairment had lower verbal intelligence.Conclusions: Hearing impairment has an impact on various measures of intelligence, as well as on the organisation and performance of cognitive processes.