Archive for February 25th, 2009
Health & Lifestyle
Health File
Symptoms Not Always Shown
Not everyone whose brain shows the telltale signs of Alzheimer’s disease after death shows symptoms of the disease—memory loss, confusion and emotional outbursts—in life. This raises the possibility some of us may have built up protection in youth that protects the brain in old age.
“Cognitive reserve developed in early life may serve to buffer individuals from Alzheimer’s pathology in later life,” Suzanne Tyas, a University of Waterloo behavioural neuroscientist, reported at the Canadian Association on Gerontology conference in London, Ont., in October.
Hallmarks of Alzheimer’s disease are accumulation of amyloid plaques, a kind of protein, between the neurons [...]






