Researchers find Alzheimer's-like brain changes in long Covid patients

Neurological and Cognitive Symptoms

• Many posters report post-Covid “brain fog”: word-finding problems, memory lapses, confusion, and reduced mental “resolution.”
• Some describe profound changes: dementia-like symptoms, mistaking voltage for resistance, misrecognizing faces as familiar, or forgetting ongoing tasks (e.g., leaving taps running).
• A few note insomnia or severely disrupted sleep around infection, and wonder if sleep loss contributes to cognitive issues.
• Some individuals say symptoms improved gradually over months; others report intermittent relapses years later.

Cardiovascular, Respiratory, and ME/CFS-like Effects

• Several describe post-Covid exercise intolerance: heart rate spiking with minimal exertion, “air hunger,” and hitting a hard physical “wall.”
• Comparisons are made to ME/CFS and post-viral syndromes; some note ME/CFS diagnoses roughly doubling after Covid and affecting more women.
• Reports include new-onset hypertension, chronic fatigue, and long-term disability even in previously very fit people.

Proposed Mechanisms and Related Research

• Multiple comments link Alzheimer’s and long Covid to chronic inflammation, blood–brain barrier breaches, and infections (viruses, bacteria, candida, mold toxins).
• Herpes-family viruses are repeatedly discussed as possible drivers of dementia, with citations to studies on antivirals and a shingles vaccine–dementia association.
• Some mention hypotheses involving microclots, vascular dysregulation, or T‑cell depletion; others reference histamine/MCAS, which is both promoted and criticized as unscientific.
• A cited UK Biobank study and EEG data are used to argue for real, measurable brain changes after Covid.

Evidence, Diagnosis, and Medical Response

• Skeptics argue long Covid evidence is weak, confounded by lockdown and psychosocial stress; others reply that newer, more rigorous studies exist.
• Several note that many clinicians are unaware of, or dismissive toward, long Covid and ME/CFS, defaulting to depression or “get your act together.”
• There’s frustration that nuanced symptoms are not systematically recorded, hindering pattern discovery and treatment research.

Vaccines, mRNA, and Causality Debates

• One strand blames mRNA vaccines as “gene therapy” causing clots and long-term issues; others strongly reject this, framing Covid infection itself as the primary risk.
• Calls are made to stratify long Covid research by vaccination status, though no clear consensus emerges.

Coping and Rehabilitation

• People mention rest, graded return to activity, cognitive exercises (e.g., category alphabet games), beta blockers, inhalers, and specialized rehab clinics as partial helps, but no consistent remedy is reported.