Striking brain similarities have been detected in patients who experience long COVID and Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS), in particular, a larger than normal hippocampus.

Ketamine can trigger symptoms similar to those of schizophrenia, but it isn’t known to cause the disorder itself. Ketamine is gaining attention for its potential to treat depression and other ...

Hospital care for CUD rose by 270%, and 10% of new schizophrenia cases could have been prevented if severe cannabis users had ceased use, with this figure rising to 18% for males aged 14-24.

The proportion of new schizophrenia cases linked to cannabis use has nearly tripled in almost two decades, increasing gradually as access to the drug was expanded for medical and later ...

Canada’s legalization of cannabis has been linked to an increase in schizophrenia cases, new research shows. Over a 16-year time period — spanning before and after legalization of cannabis for ...

The proportion of new cases of schizophrenia associated with a cannabis use disorder has risen from 4% pre-legalization to 10% after cannabis legalization in Ontario, according to new research. A ...

The study, published in the journal JAMA Network Open, found that the number of new schizophrenia cases linked to cannabis use disorder, CUD, has more than doubled in Ontario, rising from 4 per ...

The three phases of schizophrenia are the prodromal, active, and residual phases. Symptoms of schizophrenia can depend on the phase. Early symptoms of schizophrenia may be similar to other conditions.

More information: Kiran Thapaliya et al, Hippocampal subfield volume alterations and associations with severity measures in long COVID and ME/CFS: A 7T MRI study, PLOS ONE (2025). DOI: 10.1371 ...