Shrews Shrink and Regrow Brains, Offering Clues for Human Diseases

Summary: Scientists used non-invasive MRI to study shrews that seasonally shrink and regrow their brains, uncovering water loss as the key driver of this rare phenomenon. Despite losing about nine…

Smoking Linked to Brain Shrinkage, Irreversible Even After Quitting

Summary: Researchers found that smoking causes the brain to shrink and age prematurely, a condition not reversible even after quitting smoking. The study analyzed data from over 32,000 individuals in…