Effects of PEA-LUT on Frontal Lobe Functions and GABAergic Transmission in Long-Covid Patients

Inclusion Criteria: * previous diagnosis of SARS-CoV-2 infection confirmed through detection of virus RNA by polymerase chain reaction (PCR) testing of a nasopharyngeal swab; * subsequent recovery from infection as defined by two consecutive negative PCR tests separated by at least a day; * mild form of COVID-19 (symptoms may include fever, cough, sore throat, malaise, myalgia, anorexia, nausea, diarrhoea, anosmia and ageusia) without necessitating hospital admission; * complaints of cognitive difficulties and/or sense of fatigue, persisting after SARS-CoV-2 infection. Exclusion Criteria: * prior or concurrent diagnosis of neurological, psychiatric, endocrine, metabolic or cardiopulmonary conditions; * clinical and/or radiological evidence of COVID-19 related pneumonia during the active phase of the disease; * anaemia; * current pharmacological treatment with corticosteroids, antihistamines, antihypertensives, diuretics, antidepressants, anxiolytic or hypnotic drugs at the time of study