INTRODUCTION: Polycystic ovary syndrome (PCOS) is the dominant endocrine and metabolic disorder in young women. The incidence has increased significantly over the years and now affects approximately 6-20% of women of childbearing age. AIM: The aim of the work is to present the current state of knowledge about PCOS, to show what complications it brings and to present the disease as a multi-generational problem. TECHNICAL CONDITION. DESCRIPTION: It is widely accepted that hyperandrogenism plays a fundamental role in the development of most of the reproductive and metabolic disorders associated with PCOS. Excess androgens have a detrimental effect on the metabolic homeostasis of women with PCOS, acting on various metabolic tissues. PCOS is associated with reduced fertility or infertility. Women should be aware of factors affecting fertility, especially the effects of obesity and age. After pregnancy, women with PCOS have a significantly increased risk of pregnancy-related complications, including gestational diabetes, high blood pressure disorders, preterm and caesarean delivery, and pre-eclampsia.The offspring of women with PCOS may have an increased risk of birth defects and hospitalization in childhood. According to the DOHaD theory, the unfavorable uterine environment caused by mothers with PCOS, consisting in changes in fetal metabolism, may increase the susceptibility of the offspring to diseases in adulthood, according to the DOHaD theory. In addition, the offspring of PCOS are prone to a range of metabolic diseases in early adulthood, which will also affect the health of their children. CONCLUSION: The effects of endocrine disorders affect women with PCOS as well as their offspring. Diet, weight maintenance, physical activity, anti-androgenic drugs and metformin are recommended to reduce symptoms in mothers and their children. Breaking the vicious circle of intergenerational transmission remains a huge challenge.

Introduction: Hashimoto's disease is an autoimmune disorder that develops as a result of a pathological reaction of the patient's immune system, which consequently destroys the body's own healthy cells and tissues. Genetic, environmental and immunological factors influence its development. The disease may initially be asymptomatic. The exact aetiology of the disease is unknown. The worldwide incidence is approximately 10-12%. Purpose: This paper aims to present the influence of genetic factors, environmental factors, trace elements, and diet on the development and course of Hashimoto's disease based on the current state of knowledge. Conclusions: Hashimoto's disease is a multifactorial disease, but the relevance of all factors presented in the development and progression has not yet been confirmed. To date, a special diet for patients has not been created. Further research is needed to better understand the pathogenesis of the disease in order to help patients control HT. Methods: Data for the article were retrieved using PubMed setting the time descriptors to 2013-2023.

Introduction and purpose: Alzheimer's disease (AD) belongs to the group of neurodegenerative diseases and is the leading cause of dementia worldwide. Its development includes the impact of genetic, metabolic and environmental factors. Despite high prevalence of Alzheimer’s disease and dynamic development of medical science, there is currently no clinically proven causal treatment. The proposed therapies are only symptomatic. However, there is a wide set of substances known as biomarkers that are detected in the blood or in the cerebrospinal fluid (CSF) in the stages preceding full-blown Alzheimer's disease.Brief description of the state of knowledge: In order to obtain material for CSF examination, a lumbar puncture must be performed. It is an invasive procedure, with the risk of complications such as bleeding into the spinal cord, infection or even nerve damage. Obtaining a blood sample for testing specific indicators is less invasive and more widely available. Currently, the diagnostic significance of commonly known markers arising in the progress of the AD pathological process, such as amyloid β, tau protein and its phosphorylated form or β-secretase, is being investigated. As the knowledge on the pathogenesis of AD grows, further markers such as ubiquitin, micro RNA or plasma neurofilament light are tested.Conclusions: There is a collection of biomarkers that can perform a diagnostic function for Alzheimer's disease. Due to the advantages of blood and plasma testing, basing the diagnosis of early forms of AD on these tests seems to be particularly interesting. However, the use of biomarkers on a global scale requires further research and test standardization, as well as the development of guidelines for their interpretation.

Introduction: On the account of the Covid-19 pandemic, many governments around the world have imposed multiple restrictions on public life to prevent the spread of the coronavirus. Social disruption and forced isolation contributed to increased stress as well as increased use of the Internet.Aim of the study: The aim of the study was to investigate the influence of the Covid-19 pandemic on mental health problems, including Internet addiction, and to link Internet addiction with mental health problems such as anxiety, depression symptoms and insomnia.Material and methods: The data for the article was found using the PubMed and Google Scholar websites.Description of the state of knowledge: Internet addiction (IA) is becoming an increasingly serious problem of the modern world. The problem of Internet abuse is associated with various risk factors that are dependent on gender or family relationships, as well as mental disorders.Many studies have confirmed that the Covid-19 pandemic caused negative mental health effects, contributing to increased anxiety and depression symptoms. To reduce stress, people started using the internet more often. This compensatory mechanism can cause even more mental health problems by increasing anxiety, symptoms of depression and insomnia.Summary: Research by many scientists shows that the Covid-19 pandemic is exacerbating the mental health problems associated with IA. Research shows that during the Covid-19 pandemic, it is especially important to be able to manage stress through non-internet-related activities to help prevent IA.

Introduction: Lung cancer is the most diagnosed type of cancer and the leading cause of death around the world. The most important risk factor for lung cancer is tobacco smoking. However, there are a lot of other lung cancer risk factors, which include: second-hand smoke exposure, environmental exposures (indoor and outdoor air pollution), occupational exposures, genetic predisposition, and previous lung disease. In this study, we would like to present the actual state of knowledge about the influence of radon as well as other indoor air pollutants on the prevalence of lung cancer. State of knowledge: We analyzed nineteen studies in terms of the impact of indoor air pollution on morbidity and mortality caused by lung cancer. The authors of the included studies agree that both radon and other household air pollution (HAP) increase risk of the lung cancer. HAPs are formed during the combustion of solid fuels (i.e. charcoal, wood). Indoor air pollution can cause in the lungs chronic inflammation, cells damage and their proliferation, depletion of antioxidants, impairment of defense mechanisms, production of reactive oxygen species as well as genetic mutations. Radon, on the other hand, emits alpha radiation, which can affect the respiratory epithelium and produce various cytotoxic and genotoxic effects, which promote carcinogenesis. The risk of lung cancer rises by approximately 6-16% per 100 Bq/m3 increase in long-time average residential radon concentration. Conclusions: Radon and other indoor air pollutants are crucial lung cancer risk factors. It is essential to reduce HAPs production, especially in rural areas, where many people still use coal, wood, or straw for household heating and cooking. Moreover, there are regions where is a need to improve ventilation as well as to switch to clean fuel sources, such as gas and electricity. These activities will contribute to reducing the concentration of HAPs in buildings and decreasing the risk of lung cancer.

Introduction: The gut microbiota is the microorganisms in the digestive tract. They are mainly bacteria. They play a very important role in maintaining the body's homeostasis. The state of the microbiota is influenced by lifestyle including diet, stress and physical activity. In irritable bowel syndrome, there are disorders in the composition of the intestinal microbiota. It is also associated with a disruption in the proper functioning of the gut-brain axis. Aim: The aim of this study was to review the literature reports on irritable bowel syndrome and the impact of a low FODMAP diet. Methods: Data for the article were retrieved using PubMed setting the time descriptors to 2017-2021. Results and conclusions: Irritable bowel syndrome (IBS) is a chronic functional gastrointestinal disease. It is manifested by chronic abdominal pain , diarrhea or constipation and changes in the frequency of bowel movements. It significantly affects the quality of life of patients. The diagnosis uses the Roman IV criteria. Pharmacological as well as non-pharmacological methods are important in the treatment. A low-FODMAP diet plays a major role. Studies show that its proper use significantly alleviates the symptoms of IBS.