People who experience dizziness when standing face an increased risk of developing dementia, a new study reports. The increased risk appears to only apply to those who experience a drop in their systolic blood pressure. Those with systolic orthostatic hypotension were 40% more likely to develop dementia than those who did not suffer from the condition.
22% of study participants with severe gum disease developed dementia, and 23% diagnosed with mild cognitive impairment suffered extreme tooth loss. Only 14% of those with healthy gums were later diagnosed with the neurodegenerative disorder. The findings add further evidence for the link between dental hygiene and dementia.
Eating a diet rich in omega-3 fatty acids appears to have a positive effect on brain health in older women who live in areas with high levels of air pollution. Women with lower levels of omega-3 fatty acids in their blood had more brain shrinkage, specifically in the hippocampus than women with higher levels of omega-3.
A new blood test can help predict which patients with multiple sclerosis will see a decline in their condition over 12 months. The test looks for a biomarker called neurofilament light chain, a protein that can be detected as nerve cells die. People with higher levels of the protein were 40-70% more likely to experience worsening symptoms over a year than those with lower levels.
Six months of aerobic exercise intervention was associated with cognitive improvements and cerebrovascular regulation. Older people who embarked on the aerobic exercise program had, on average, a 5.7% improvement on tests of executive function and verbal fluency similar to that of a person five years younger.
In the case of dementia, it might not be what you eat, but more of what combination of foods you eat, which increases your risk of developing the neurodegenerative disorder. Researchers found those whose diets consisted mostly of highly-processed meats, starchy foods, and sugary snacks were more likely to be diagnosed with dementia later in life that those who consumed healthier foods.
Researchers report conflicting evidence about whether air pollution is associated with cognitive decline.
Contrary to popular belief, taking a low-dose of aspirin daily does not reduce the risk of developing mild cognitive impairment (MCI). Researchers found no difference between older people who took aspirin and those who took a placebo in the risk of developing MCI, dementia, or Alzheimer's disease.
Eating a vegetarian diet rich in nuts, soy, and vegetables may have a neuroprotective advantage when it comes to reducing stroke risk.
Subtle changes in thinking and memory may appear before, or in conjunction with, the development of amyloid plaques.