Near-death experiences (NDEs) including hallucinations, out-of-body sensations and time distortions, affect around 10% of people, a new study reports. 72% of people overall who experienced NDEs say their experience was unpleasant. Researchers found an association between NDEs and REM sleep intrusion into wakefulness, resulting in sleep paralysis and hallucinations.
People with multiple sclerosis may have a greater overall risk of developing cancer than those without the autoimmune disease. The highest risks are associated with respiratory, urinary and central nervous system cancers.
Neuroimaging reveals Holocaust survivors have decreased gray matter in brain structures associated with emotional processing, memory, and social cognition. Early results show similar neuroanatomical changes in the children of survivors, suggesting an epigenetic link.
Higher levels of air pollution associated with urban living could put people at a 29% increased risk of multiple sclerosis.