Introduction: Burnout is characterised by a triad of emotional exhaustion, depersonalisation and a decreased sense of accomplishment. Distress during medical school can lead to burnout, with significant consequences, particularly if burnout continues into residency and beyond. There is a lot of research into burnout and the authors reviewed literature pertaining to medical student burnout, its prevalence, and its relationship to personal, environmental, demographic and psychiatric factors.The aim of the study: Paying attention to the correlation between academic lifestyle and occurrence burnout among medical students.Material and method: The research was done by the usage of the PubMed and Google Scholar articles about the topic of: burnout; stress; medical students; behaviour.Description of the state of knowledge: The educational process brings a considerable amount of stress to medical students that can influence mental health status and contribute to further professional burnout. According to various studies and definitions of occupational burnout, this phenomenon is observed in up to 76% of medical students. Research has identified associations between burnout and lifestyle health behaviours. Also relationship between the occurrence of burnout and suicide attempts has been demonstrated. In turn spirituality has been positively influence well-being and to prevent burnout.Summary: Undoubtedly, it is worth paying attention to the phenomenon of occupational burnout among students from the first years of medical studies. Universities should make efforts to reduce the risk of the occurrence and further development of burnout, which may have negative effects in the future work with the patient.

(1) Background: Myopia is one of the leading causes of visual impairment. Visual work and usage of electronic devices are known risk factors of myopia. Many education systems were forced to apply online and hybrid teaching methods, to reduce the number of new cases of COVID-19. Medical students are a population well-known for intense visual work in the form of learning; (2) Methods: Visual acuity and refractive error were measured in the population of medical students. Participants also filled out the survey that included their population characteristic and their habits related to the hygiene of vision; (3) Results: We found a correlation between the age of the first diagnosis of myopia and current values of refractive error. The majority of participants believe that the COVID-19 pandemic had an impact on the health of their vision. Among methods of studying, usage of the computer screen was less preferred by myopic students; (4) Conclusions: In the population of medical school students in Eastern Poland, visual acuity was lower than 1.0 in 232 (52.97%) in the right eye and 234 (53.42%) in the left eye. Early recognition of refractive error has influenced its current values. Among methods of studying, usage of the computer screen was less preferred by myopic students. More population-based studies should focus on the impact of the COVID-19 pandemic on the health of vision.

Introduction: Depression is a common psychiatric disorder leading to high burden especially for some other psychiatric comorbidity. Annually over 43 billion dollars are expended for patients with depression among them 28% are directly for depression and other costs are related to mortality and morbidity due to depression. The aim of the study: Paying attention to new options for treating depression – a disease that affects more and more people.Material and method: The research was done by the usage of the PubMed and Google Scholar articles about the topic of: botulinum toxin; depression; treatment.Description of the state of knowledge: Injecting Botox into the muscles responsible for expression of anguish or sadness may potentially decrease the patients experience of feelings. Botox reversibly blocks acetylcholine release from neuronal axons into the synapse, inhibiting neuromuscular transmission. If the facial feedback hypothesis is correct, by injecting Botox into the corrugator and procerus muscles, it will reversibly inhibit frown facial expressions and have the capability of propagating or enhancing sad and depressed feelings.Summary: The results from all randomized control trials proved that botulinum toxin A injection in the glabellar region was associated with significant improvement mood and may be a safe and effective treatment to reduce symptoms of depression.

Introduction and purpose: Sleep disorders are a diverse and widespread group of diseases affecting the cardiovascular system. The aim of this paper is to review the available literature and to summarize how selected sleep disorders affect the development of hypertension, ischemic heart disease and stroke. Methods and materials: Materials available in the PubMed and Google Scholar database were analyzed using the keywords “sleep disorders”; “sleep apnea”; “insomnia”; “restless legs syndrome”; “cardiovascular disease”; “hypertension”; “coronary artery disease”; “stroke " in various configurations. State of knowledge: Sleep disorders are a wide group of diseases with a diverse phenotype and pathomechanism, having a diverse impact on the condition of the cardiovascular system, leading to the development of diseases in the above system. Summary: The risk of developing hypertension, ischemic heart disease and stroke depends on the accompanying sleep disorders. Occurs with obstructive sleep apnea and sleep shortening. The correlation of restless legs syndrome to stroke is unclear. The relationship between insomnia and hypertension and stroke is not clarified. Keywords: sleep disorders, cardiovascular diseases, sleep apnea, insomnia, restless legs syndrome.

Introduction and Purpose: Multiple sclerosis (MS) is an autoimmune disease that damages the nervous system. Although MS is usually diagnosed in adults, it can also occur in children and adolescents, which presents diagnostic and therapeutic challenges. In recent years, attention has been drawn to the role of diet in alleviating MS symptoms, including in the pediatric population. The ketogenic diet, characterized by low carbohydrate intake, high fat intake, and moderate protein intake, is of interest as an additional therapeutic approach in MS due to its effects on metabolism and reduction of inflammation in the body.   Materials and methods: This article reviews the literature on the impact of the ketogenic diet on MS, with particular emphasis on its impact on the course of MS in the pediatric population. Articles were searched by key words, e.g. multiple sclerosis, paediatrics, children, diet, ketogenic diet, in various configurations, in Scopus, Medline, Google Scholar databases.   Current state of knowledge: While there are several studies on the effects of the ketogenic diet, including those on MS in children, the results are inconclusive and require further research. Some publications suggest that the ketogenic diet can help alleviate MS symptoms, such as problems with balance and coordination, and improve patients' quality of life.   Conclusions: In conclusion, the ketogenic diet may be a promising approach in the treatment of pediatric MS, but requires further research and careful assessment of benefits and risks before its introduction into therapy.

Introduction: Chronic Kidney Disease (CKD) has become one of the most common chronic diseases of the XXI century and affects around 16% of the world's population. Despite the advancements of contemporary science and a range of therapeutic methods it considered a progressive and irreversible process. Nevertheless, use of ACEI halts the progression of the disease and postpones the necessity of renal replacement therapy and is the method of choice for this group of patients.  Purpose of the work: The article reviews current literature and writing regarding Chronic Kidney Disease (CKD) and the impact of ACEI on the progression of this condition.  Materials and methods: The sources available in the PubMed database have been analyzed using the keywords: “ACEI”, “angiotensin-converting-enzyme inhibitors”, ”chronic kidney disease”, “CKD”. Related publications to the topic of the work have been selected and utilized.  Description of the state of knowledge: Pharmacological therapy using ACEI is the main method of treatment for patients with CKD and should primarily serve to reduce proteinuria and control blood pressure. It inhibits the progression of the disease and delays the development of end-stage renal failure. However, the treatment of CKD using ACEI is controversial in cases of advanced stages of the disease.  Summary: ACEI inhibitors are one of the major advances in the treatment of patients dealing with CKD. Due to the increasing number of cases of the disease being observed, further research will be needed regarding the use of these drugs. Particularly ambiguous is the therapy for patients with advanced, just before end-stage renal failure, which will require a more in-depth analysis of these cases.

Objective: The aim of the study was to draw attention to the problem of overweight and obesity among children and adults. Another important aspect of this article was to indicate the need of promotion a healthy lifestyle as a way to reduce body weight.  Methods: Available literature was reviewed for the purpose of writing this article. Using keywords such as obesity, overweight, pandemics, diet, lifestyle, chronic diseases, metabolic disorders- PubMed was searched. Results: The incidence of overweight and obesity is constantly increasing. This phenomenon is observed all over the world. Obesity has become a pandemic of the 21st century. Consumption of unhealthy, highly processed food is increasing these days. In addition, sedentary lifestyle is very popular. Lifestyle and diet changes are the main causes of this pandemic. The SARS-CoV-2 virus also had an impact on the development of the obesity and overweight pandemic. Obesity affects the quality of life and causes many chronic diseases. The effects on the community are also significant. Obesity and related diseases like diabetes, ischemic heart disease, heart attacks, asthma result in high health care costs. Conclusion: The percentage of overweight and obese people around the world is increasing. It is necessary to promote healthy eating, active lifestyle and look for alternative ways to reduce the scale of overweight and obesity problem.

The problem of infertility affects approximately 20% of married couples, and the number of people affected by this problem is still increasing[5,6]. Developed countries are characterized by the prevalence of primary infertility, while in developing countries there is a high rate of secondary infertility[8,9]. The most common cause of marital infertility is obstruction of the fallopian tubes, which occurs in 30-35% of women and requires surgical intervention. However, both sexes are dominated by immunological and hormonal disorders (25%-30% of cases)[3,4]. The basic examination in which male fertility is determined is the semen analysis, while in women, many tests should be performed in order to make a diagnosis: anamnesis, gynecological examination, ultrasound performed repeatedly during the menstrual cycle (ovulation assessment), hormonal and immunological tests, post-coital tests, bacteriological cultures, hysterosalpingography or laparoscopy [20]. In vitro fertilization is the most effective of all methods of infertility treatment. In vitro fertilization can be performed using the classical method by adding prepared sperm to the egg cells or by microinjection of the sperm into the egg cell[21].