Tag
Brain health
Page 9 of 15
Spouses of people with dementia had 1.7 times the risk
A JAMA Network Open study of 955,105 married adults in Taiwan found that people whose partner developed dementia went on to develop it more often themselves, though the extra risk over five years was about three percentage points.
Aug 3, 2026
Vitamin B12: uses, evidence, dosing and safety
B12 inverts the usual advice here. Most people do not need it, but vegans, older adults and anyone on long-term metformin do, because untreated deficiency damages nerves in ways that may never reverse.
Aug 3, 2026
Wildfire smoke sent more people to the ER with migraine
Across 997,701 emergency visits in Alberta and Ontario, wildfire particles tracked a 6% rise in headache visits. Ordinary air pollution at the same concentration did not.
Aug 2, 2026
Genetic risk fell as autism and ADHD diagnoses rose in Denmark
A JAMA Psychiatry study of 37,000 Danes found people diagnosed more recently carried less genetic liability, pointing at broader criteria rather than a new environmental cause.
Aug 1, 2026