The New Scientist discusses recent work that shows there might be a comparatively simple fix for the general mental and visual decline that sets in with old age. This is fascinating stuff. The conclusion that all the brain cells are working fine but the problem lies in communication mechanisms is particularly eye-opening. This ties in with work from last year showing that people do grow new neurons as they age. If the aging decline problem is in communication between brain cells, rather than in the cells themselves, then it should be far easier to fix.