For people with arthritis, exercise reduces pain and lowers levels of inflammatory cytokines. Exercise also increases the production of natural endocannabinoids. Researchers found the way exercise promotes these changes was due to altered gut microbes.
Over-activity in the hippocampus has been linked to certain symptoms of schizophrenia.
Study reports the youngest children in a class are more likely to be diagnosed with ADHD, suggesting immaturity in a peer group may influence diagnosis.