A new study has found that people with specific personality traits might be at a greater risk of dementia. A group of experts has revealed that people who are moody, anxious, and impulsive are at a higher risk of being diagnosed with worse cognitive decline. Scientists from Northwestern University in Illinois have come up with this study. Many types of dementia are linked to abnormal protein build-up in the brain. It leads to the shrinkage of different areas of the vital organ and the destruction of nerve cells. Different types of dementia are associated with family history as well. Experts have said that people who are more self-disciplined, motivated, and organized have improved cognitive function. It makes people live with brain alterations linked with dementia without its symptoms.
Experts have informed that the aging brain tends to accumulate tangles and plaques, which can obstruct thinking and memory. It is quite different from Alzheimer’s where a protein called amyloid creates plaques around the brain cells. As per the study, different elderly people have variations in their ability to maintain their cognitive preserve, while having tangles and plaques. Scientists observed the data of 1375 deceased people who had participated in the Religious Orders Study and the Rush Memory and Ageing Project. These two studies have shown vast data of people based on their personalities and cognitive function. Autopsies related to participants’ neuropathology have been observed in the studies as well
Experts revealed that people who were self-disciplined, motivated, and diligent and achievers in their lifetime had experienced a higher level of cognitive reserve. This can be defined as living with neuropathy, which leads to dementia without having severe symptoms. Scientists said that people who had a tendency of being impulsive, anxious, and moody had been diagnosed with worse cognitive function. This study has been published in the Journal of Gerontology. These findings show that it might be possible for elderly people to live with Alzheimer’s disease while having healthy levels of cognitive function. The study mentions that personality traits are linked with how well people can maintain their cognitive performance despite having dementia. Experts have said these traits will be useful to identify people with a higher risk of worse cognitive decline.