The development of technologies using the electromagnetic field (EMF) of the radio frequency range has become a leading trend related to the need for wireless data transmission. This made it possible for distance learning of schoolchildren and students in a dangerous epidemic situation. Accumulated data on the sensitivity of the human body to the action of EMF. The purpose of the work is to assess the conditions of teaching schoolchildren in computer science classrooms, as well as the impact of online learning on the health of high school students and university students. Based on the results of an online survey of schoolchildren and students according to the author’s questionnaire, a database was formed and an assessment of the conditions of distance learning was carried out. With the use of instrumental research, an assessment of the learning conditions in computer science classrooms was carried out. The materials were processed using the reliability criterion χ2 and the health risk assessment RR. Control data in computer science classrooms showed non-compliance of temperature, air humidity, air ionization, illumination, noise with regulatory requirements, except for EMF levels. With online learning, a high duration of stay of high school students and students in a digital environment has been established, including the learning process, homework, and leisure time on the Internet. In the structure of complaints related to studying online and doing homework, there were: visual impairment over the past year, headaches, back pain, irritability, eye fatigue, a feeling of dryness in the eyes. The time for sleep and physical activity decreased. Data have been obtained confirming the need to protect the health of students in a digital environment with the provision of safe conditions for visual work, limiting the time of use of digital devices, increasing the literacy of all users.

Summary. Introduction: Active introduction of electronic learning tools in educational institutions poses new health risks to school-age children. Creating a modern and secure digital educational environment requires constant monitoring of the conditions and modes of use of new electronic tools, the diversity of which is changing rapidly. The purpose of this work was to assess certain parameters of indoor school environment influenced by the use of interactive panels (IPs), an e-learning tool of the latest generation. Materials and methods: We studied the parameters of electromagnetic radiation, microclimate (air temperature and relative humidity), artificial lighting levels, chemical composition of indoor air, concentrations of positive and negative air ions during the school day in classrooms with and without interactive panels. The measurements were carried out in accordance with the approved methods of laboratory and instrumental research, and the results were then assessed for compliance with current sanitary rules and regulations. Statistical processing of the results was carried out using parametric methods of statistical analysis. Results and conclusion: Indices of the microclimate and air ions in IP-equipped classrooms demonstrated a more pronounced negative dynamics during the school day. Our findings indicate the need for hygienists to pay close attention to the problem of using new electronic teaching aids and interactive panels in particular, to continue research in the area under study in order to elaborate hygienic regulations for applying IPs in the classroom and to prevent overwork and health risks to school-age children.

The digital transformation of modern education contributes to the active introduction of interactive panels (IP) into the educational process, replacing traditional chalkboards. Minimizing possible risk factors when using an IP also requires considering the visual characteristics of its screen. At present, there are no results of such studies in the scientific literature. The purpose of this work was to substantiate the optimal range of IP screen brightness when it is used in the classroom to prevent general and visual fatigue of schoolchildren. We analysed research articles describing studies in visual hygiene, lighting engineering, display technologies, etc. Our study involved measuring brightness and pulsation coefficient of a working IP screen. Ranges of IP screen brightness that could produce harmful effects on children's health have been empirically established. With the help of a specially designed questionnaire, complaints of students attending the 4th grade of secondary schools were studied to identify general and visual fatigue, as well as factors caused by the IP and negatively affecting the respondents’ well-being. The relative risk values are calculated, namely a probability that these complaints would occur in schoolchildren, depending on parameters of IP screen brightness. The optimal range of IP screen brightness is justified for a working mode that significantly reduces the probability of students complaining about general and visual fatigue. Monitoring and correction of IP screen brightness mode during classes will reduce the risks of students' health disorders. It is necessary to continue research to substantiate the optimal visual characteristics of the IP screen based on investigating indicators describing the functional state of the child's body.

The digital transformation of modern education contributes to the active introduction of interactive panels (IP) into the educational process, replacing traditional chalkboards. Minimizing possible risk factors when using an IP also requires considering the visual characteristics of its screen. At present, there are no results of such studies in the scientific literature. The purpose of this work was to substantiate the optimal range of IP screen brightness when it is used in the classroom to prevent general and visual fatigue of schoolchildren. We analysed research articles describing studies in visual hygiene, lighting engineering, display technologies, etc. Our study involved measuring brightness and pulsation coefficient of a working IP screen. Ranges of IP screen brightness that could produce harmful effects on children's health have been empirically established. With the help of a specially designed questionnaire, complaints of students attending the 4th grade of secondary schools were studied to identify general and visual fatigue, as well as factors caused by the IP and negatively affecting the respondents’ well-being. The relative risk values are calculated, namely a probability that these complaints would occur in schoolchildren, depending on parameters of IP screen brightness. The optimal range of IP screen brightness is justified for a working mode that significantly reduces the probability of students complaining about general and visual fatigue. Monitoring and correction of IP screen brightness mode during classes will reduce the risks of students' health disorders. It is necessary to continue research to substantiate the optimal visual characteristics of the IP screen based on investigating indicators describing the functional state of the child's body.

Background: The wide use of digital tools in teaching requires a hygienic assessment of their impact on the health and lifestyle of students. The objective of the study was to assess the impact of the digital environment on the health and lifestyle of adolescents, depending on the duration of use of electronic learning tools in educational and leisure activities. Methods: An anonymous online questionnaire-based survey of 111 high school and college students was conducted to establish their screen time in the educational process, when performing homework and at leisure, as well as indicators of wellbeing and lifestyle and health complaints. In addition, learning conditions in college computer classes, such as illumination, microclimate, air ionization, levels of electromagnetic fields, airborne concentrations of phenol and formaldehyde were assessed. Modern statistical methods (Student’s t-test, chi-squared test) and methods of evidence-based medicine were applied. Results and discussion: Almost 66 % of the respondents reported using electronic teaching aids (a computer or laptop) at school three or more times a week and severer symptoms of fatigue after such classes. Complaints typical of adult professional users were not common in adolescents, except for visual impairment over the past year (48.6 %). In computer classes, microclimate parameters were far from being optimal: illumination was lower than the regulated values; the levels of electromagnetic fields, ionization, and indoor air concentrations of phenol and formaldehyde were comparable to the appropriate standard values. We observed a high involvement of adolescents in the use of digital tools at home for educational purposes and especially at leisure. The intensive use of Internet (more than 4 hours a day) was associated with frequent complaints of headaches, visual impairment, sleep disorders, and poor self-assessment of the physical shape that may be attributed to the established decreasing number of teenagers engaged in physical culture and sports. Conclusion: The length of time spent in the Internet space for homework and leisure activities affects students’ health and lifestyle. This indicates the need to develop and implement preventive and educational programs for adolescents in order to minimize health risks posed by digital environment and confirmed by outcomes of distance learning.