Decline in brain function often occurs as people age. People often worry that declining brain function is an inevitable part of growing old and will lead to dementia, but it is not. Many people do not experience age-related cognitive decline. Clinical studies that have followed older individuals over many years have consistently demonstrated that chronically low blood pressure increases the risk of age-related cognitive decline. For example, a study published in 2017 followed more than 24,000 people for up to 27 years. This study showed that low blood pressure is a significant predictor of cognitive decline and the probability of developing dementia. This was independent of age, gender, weight, cardiovascular, kidney or diabetic status. Low blood pressure is associated with decreased blood flow to the brain when an individual is sitting or standing. Many researchers have come to believe that insufficient brain blood flow plays a critical role in the …