New study provides first evidence of dopamine system injury in the brain of long COVID patients

MedicalXpress | 七月 10, 2026

A new brain imaging study led by researchers at the Center for Addiction and Mental Health (CAMH), published in eBioMedicine, provides the strongest evidence to date that long COVID is associated with injury to dopamine-releasing neurons in the brain—a finding that may explain symptoms such as lack of motivation due to fatigue, slowed movement and memory difficulties, and could open the door to new treatment strategies.