The normal decline in memory associated with ageing
( too much stress )
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Scientists claim to have solved the mystery of how stress contributes to memory loss in old age.
Researchers at Edinburgh University have shown how two receptors in older brains react to the stress hormone cortisol, which has been linked to memory loss in the elderly.
The study found that one receptor was activated by low levels of cortisol, which helped memory.
However, once levels of the hormone were too high they spilled over on to a second receptor, activating brain processes which contribute to memory impairment.
When the receptor linked to poor memory was blocked, the memory recall problem was reversed.
The experiment based on older mice navigating a maze, was published in the Journal of Neuroscience. Read more: dailymail.co.uk
Eating three bananas a day could be enough to slash the risk of a stroke
A banana for breakfast, one for lunch and one in the evening would provide enough potassium to reduce the chances of suffering a blood clot on the brain by around 21 per cent. Read more: dailymail.co.uk
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