BackgroundSleep has also been cherished by society as a basic human need with a crucial importance for human health. People spend around one third of their lives sleeping. Nowadays, it has never been harder to achieve a restful sleep. When sleep is better understand, that will lessen the drawbacks of the different sleep disorders. Healthy sleep is important for maintaining physical and mental health in adult individuals. Sleep deprivation poses a significant risk for the individual and leads to psychological conditions, such as depression and anxiety. Several sleep disorders are known to the science. If breathing during sleep is not regular, a case of obstructive sleep apnea (OSA) may have been diagnosed. The World Sleep Day is traditionally celebrated in March, on the Friday before the Spring vernal equinox of each year. It is a global awareness and internationally recognized event, organized annually since 2008 by the World Sleep Day Committee of the World Sleep Society. Organizers aim to raise awareness of the problems with proper sleep, sleep disorders and aspects connected to it -medical, social, educational and others. Methods Scientific databases -PubMed, SCOPUS and MEDLINE were used to search for the information targeted. The following keywords -World Sleep Day, history, events, prophylaxis, sleep disorders were used. Information from the official websites of the societies involved in celebrating World Sleep Day was included as well. The aim of the following article is to study the history of the event from its foundation till today, aiming to stress out its usefulness. Results and discussionWorld Sleep Days has been internationally celebrated since 2008 for 15 years now. Since 2016, Bulgaria actively participates in all events organized by the World Sleep Society -Scientific symposiums, prophylactic check-ups for obstructive sleep apnea, elective disciplines in the teaching of students are organized. Importance is put on informing society about the dangers of undiagnosed and untreated sleep disorders, especially sleep apnea. Sleep medicine and Dental Sleep medicine are not recognized as medical specialties in the Republic of Bulgaria. ConclusionsProblems of sleep are extremely common in our days. The situation is continuously being worsened due to the hyperconnectivity people experience with the glowing computer and mobile phone screens. It is admirable that specialists in the field and society try to raise awareness and combat the poor sleep quality consequences. Only by doing the abovementioned, alleviation of the undesirable outcomes of irregular sleep can be reached. Legislative measures should be taken in order to certify Sleep medicine and Dental sleep medicine as medical specialties in the Republic of Bulgaria.

BackgroundAccording to recent data from the World Health Organization from 2019, approximately 466 million people are living with a disabling hearing loss, most of them in low-and middle-income countries. Undiagnosed and untreated hearing disorders are proven to be a leading cause for morbidity and cost annually $750 billion. Hearing disorders and hearing loss are believed to higher their prevalence due to the fact that a wide majority of people are exposed to high noises and lack of timely and adequate hearing diagnostics and treatment of ear conditions. Methods Scientific databases -PubMed, SCOPUS and MEDLINE were used to search for the information targeted. The following keywords -World Hearing Day, history, events, prophylaxis, hearing disorders were used. Information from the official websites of the societies involved in celebrating World Hearing Day was included as well. The aim of the following article is to study the history of the event from its foundation till today, aiming to stress out its usefulness. Results and discussionBack in 1995, World Health Assembly passed a resolution WHA48.9, in which attention of the health impact of hearing loss was put -120 million people worldwide were living with a disabling hearing difficulties. During the World Health Assembly in 2017, with the adoption of the resolution WHA70.13, hearing care and hearing loss were highlighted as a public health issue. Authors claim that most of the causes for hearing loss are preventable. World Hearing Day is an international campaign, organized annually by the Office of Prevention of Blindness and Deafness of the World Health Organization (WHO) on March, 3rd. Organizers claim that World Hearing Day is the largest global awareness event, aiming to bring society's attention to ear and hearing disorders. It addresses hearing loss. First activities, connected with the World Hearing Day, took place in 2007, after the Beijing Declaration during the 1st International Conference on Prevention and Rehabilitation of Hearing Loss. Conclusions Legislative measures are need to be undertaken to stress even further the importance of proper hearing. In the era of COVID-19 pandemic and its proven consequences on the hearing and vestibular system, urgent measures for timely diagnostics, treatment and rehabilitation are more than ever needed.