Brain Stimulation in Long COVID

Inclusion Criteria: * Meet the World Health Organization (WHO) definition of long COVID. * Aged 18 years or older. * Severe fatigue, defined as a score ≥35 on the Checklist Individual Strength (CIS) fatigue subscale. * Significant cognitive complaints, defined as a score ≥18 on the CIS concentration subscale. * Commitment to actively undergo rTMS * Ability to attend the study site regularly for treatment sessions. * Capacity to provide written informed consent. Exclusion Criteria: * Prior rTMS treatment or current intensive/experimental treatment for long COVID. * History of epilepsy or first-degree family history of epilepsy. * Recent initiation or dosage change of psychotropic medication (less than six weeks for psychotropic medication including antidepressants and antipsychotic drugs, less than two weeks for benzodiazepines). Medication doses must remain stable during the study. * Other active concurrent pharmacological treatments for post-covid symptoms * Contraindications to MRI scanning (e.g., non-removable metallic implants, severe claustrophobia). * Presence of a cochlear implant. * Neurological disorders such as multiple sclerosis or other neurodegenerative conditions. * Pregnancy. * Known brain lesions or ischaemic scars influencing seizure threshold. * Severe uncontrolled migraines. * Severe cardiovascular disease * Raised intracranial pressure. * High alcohol consumption (males/females: 21/14 units per week) or use of epileptogenic drugs. * Severe sleep deprivation at the time of treatment.