Prof. Dr. Mariusz Siemiński graduated (MD) from the Faculty of Medicine, Medical Academy of Gdansk, Gdansk, Poland in 2001, obtained a degree of habilitated doctor (dr habil.) in medical sciences in 2018, and was awarded the title of Professor (Prof.) in medicine by the President of the Republic of Poland in 2022. Prof. Dr. Mariusz Sieminski is a specialist in neurology and emergency medicine. From 2008 to 2016, Prof. Dr. Siemiński was a Deputy of the Head of the Department of Adults’ Neurology, Medical University of Gdansk. From 2016 to 2020, Prof. Dr. Siemiński was a Deputy of the Head of the Emergency Department at the Clinical University Centre, Gdansk, Poland. Since 2021, Prof. Dr. Siemiński has been the Head of the Emergency Department, at the University Clinical Centre, Gdansk, Poland, and the Head of the Emergency Department, Medical University of Gdansk. Prof. Dr. Siemiński is a member of the European Society of Emergency Medicine and the European Academy of Neurology. Prof. Dr. Siemiński’s research interests mainly focus on Traumatic Brain Injury, Sepsis and Septic Encephalopathy, Cardiac Arrest within Emergency Medicine, Sleep Disorders, Restless Legs Syndrome, Movement Disorders, Narcolepsy, Periodic Limb Movements, Migraine, Epilepsy, and Pain Medicine within Neurology.