Inclusion Criteria:

• * Aged 18-65 years.
• * A history of confirmed SARS-CoV-2 infection.
• * Subjective reports of cognitive symptoms that interfere with everyday activities, starting on or shortly after SARS-CoV-2 infection.
• * Continuation or development of Long-Covid brain fog 3 months after the initial SARS-CoV-2 infection, with these symptoms lasting for at least 2 months with no other explanation.
• * Objective attentional deficits as measured by the Conners CPT-312, and/or the Digit Span subtest (WAIS- III13).
• * Able to use a keyboard.
• * Able to understand and communicate in English.
• * Able to consent independently.

Exclusion Criteria:

• * Being hospitalized due to COVID-19 diagnosis for more than 3 days.
• * Pre-morbid neurological conditions that could potentially affect cognition, such as Parkinson's Disease, Alzheimer's Dementia, acquired brain injury.
• * Severe depression.
• * Currently enrolled in cognitive training or physical exercise training.
• * Receiving chemotherapy or radiation within last 6 months.
• * Active substance abuse.