The loss of smell sense is the first sign that you will notice when talking about this disease. In a study published in JAMA Neurology, it was shown that elderly people with a lost sense of smell are more likely to have mental difficulties that can progress t Alzheimer’s.
1,400 seniors of the age of 79 with normal mental functioning participated in the study. Mainly, the test was conducted on the sense of smell – scratching and sniffing different odors and making them choose from 4 options: the smell of food and non-food odors like banana, turpentine, onion, gasoline and paint thinner.
In a period of 3.5 years, the study showed 250 people who developed mild cognitive impairment – problem with the memory and judgment. And this can result in dementia and other possible mental health problems.
64 of 250 people showed signs of Alzheimer’s disease.
People with the worst tests had 2.2 more chances to develop mild cognitive impairment. Those with the bad smell tests were related to the development of Alzheimer’s disease.
Also, it had an opposite side – the good smell test scores can lead to improvement with dementia problems.
By conducting smell tests and preventing the occurrence of Alzheimer’s, mentally normal people can discover the dementia problems.
And this can be used only among elderly people, and if they had bad scores it can lead to mild cognitive impairment and later to Alzheimer’s disease. This test can prevent the problems with cognitive decline from progressing to Alzheimer’s and dementia.
Alzheimer’s and the other forms of dementia affect the brain part that distinguishes smell. This test is good because if this part is affected that can lead to dementia.
Also, the lead researcher of this study gives another explanation if a person gets a bad score on the smell test, that shouldn’t be dementia, but because of the chronic sinus or respiratory conditions of the patient.
10 out of 25% seniors have mild cognitive impairment, and Alzheimer’s is the most common form of dementia.
Source: Weekly Healthy Life