Neuroimaging study reveals those with anorexia have noticeable reductions in cortical thickness, subcortical volume, and cortical surface area. The reductions are between 2 to 4 times larger than abnormalities in brain size and shape in those with other mental illnesses.
Even mild COVID-19 infection can lead to cognitive alterations and brain shrinkage, researchers report. The findings could help explain the brain changes that contribute to long-COVID.
New studies have identified an association between daily high coffee consumption, brain shrinkage and an increased risk of dementia. However, researchers were unable to identify a causal relationship between caffeine consumption and dementia. The study also found moderate coffee consumption was associated with lower dementia risk than high consumption, or abstaining from caffeinated drinks.