Vitamin B-12 may prevent memory loss

BBC NEWS | Health | Vitamin 'may prevent memory loss':
2009.09.09
"Older people with lower than average vitamin B12 levels were more than six times more likely to experience brain shrinkage, researchers concluded..."This study adds another dimension to our understanding of the effects of B vitamins on the brain - the rate of shrinkage of the brain as we age may be partly influenced by what we eat." ...Shrinkage has been strongly linked with a higher risk of developing dementia at a later stage..."

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Walking Boosts Brainpower

Walking Boosts Brainpower: WebMD
3008.09.02
"Older adults who take a brisk stroll just three times a week could boost their brainpower and reduce the risk of memory-robbing illnesses such as Alzheimer's disease...Those in the exercise group scored higher on cognitive tests and had better delayed recall. For example, they could more accurately remember a list of words after a certain amount of time had passed...the benefits could be seen after 6 months and that they lasted for at least a year after the program's end..."

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Coffee may slow memory declines in women... not men

Coffee may slow memory declines in women: study Reuters/Yahoo!News 8/6/07 "...Drinking more than three cups of coffee a day helped protect older women against some age-related memory decline...Men did not enjoy the same benefit..."The more coffee one drank, the better the effects seemed to be on (women's) memory functioning in particular," said Karen Ritchie...women who drank more than three cups of coffee per day, or its caffeine equivalent in tea, retained more of their verbal and -- to a lesser extent -- visual memories over four years...These women had a 33 percent lower odds of having verbal memory declines and 18 percent lower odds of having visual and spatial memory declines, compared to women who drank one cup or fewer per day...The effect also depended on age, with women over 80 reaping more benefits from these beverages than those who were 10 to 15 years younger...Some studies in mice have suggested that caffeine might block the buildup of proteins that lead to mental decline..."

The second coffee study in week that showed a benefit for women but not men. If true then the metabolism of coffee would seem to be different in men and women. What else in the diet do men and women metabolize differently? If this is the case, why is this happening and what is the evolutionary reasons for different metabolisms? Note the frustrations written by a man towards this horribly sexist coffee.

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