According to researchers at the Krembil Neuroscience Centre in Toronto, Canada, some forms of dementia are the result of many tiny, unnoticed strokes that damage the brain over time. The researchers believe that this type of dementia, once considered untreatable, could be managed with changes in lifestyle. The findings come from a study involving five individuals who had their brains scanned over the course of 16 weeks. The frequent scanning revealed minute spots on the MRIs characteristic of minor strokes. Such spots had not been in previous studies because the scans were conducted at longer intervals, in most cases just once per year. While researchers believe that the spots themselves do not cause symptoms, the lesions can become areas of white matter disease characteristic of dementia. Although approximately half of all elderly individuals have this white matter disease, in many cases it is harmless. For some, unfortunately, the disease can
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