Brains of 'super-agers' don't shrink as fast as others

As we age, our brain shrinks, but a select group of elders known as "super-agers" lose less brain volume than regular seniors, which may help them stay sharp, researchers said Tuesday.The findings in the Journal of the American Medical Association show that super-agers, 80 and older, have a significantly thicker brain cortex than people who are aging normally."Increasing age is often accompanied by 'typical' cognitive decline or, in some cases, more severe cognitive decline called dementia," sai