Is There a Link between Alzheimer’s Disease & Blood Type?

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How Blood Type & Alzheimer's Risk Are Related in Tucson, AZ

Grey matter in the brain is where important nerve cells are located, including those responsible for storing and processing information. It’s a loss of this grey matter that’s characteristic of Alzheimer’s disease. A new study suggests people with type O blood may have a decreased risk of developing Alzheimer’s or other dementia-related conditions due to an increased amount of grey matter in their brains. Read on to learn more about this research.

Grey Matter & Alzheimer’s

Previous research observed correlations between clinical measures of cognitive decline and a visible loss of grey matter in people with Alzheimer’s. As grey matter decreases, the brain has increased difficulty processing newer information, partly accounting for the short-term memory loss often experienced by seniors with Alzheimer’s. 

If your loved one is living with cognitive impairment, help is just a phone call away. Caring for senior loved ones can be challenging for families who don’t have expertise or professional training in home care, but this challenge doesn’t have to be faced alone. Family caregivers can turn to Home Care Assistance for the help they need. We provide high-quality live-in and respite care as well as comprehensive Alzheimer’s, dementia, stroke, and Parkinson’s care.

Grey Matter & Blood Type

The link between grey matter and blood type is based on a British study comparing the amount of grey matter in the brains of participants and their risk of developing dementia or Alzheimer’s. The study, which involved healthy individuals, further separated participants based on their blood type, resulting in the conclusion that people with type O blood may have an added layer of protection against memory impairment. 

Many seniors with Alzheimer’s and other forms of dementia need help to be able to live at home safely. Families looking for top-rated Tucson in-home care providers can reach out to Home Care Assistance. From respite care to specialized Alzheimer’s, dementia, stroke, and Parkinson’s care, there are many ways we can make life easier for seniors and their loved ones.

The Difference with Type O

Researchers based their findings on MRIs to determine if there was a link between grey matter and blood type. Results showed less grey matter in the temporal and limbic areas of the brain in participants with A, B, and AB blood types. These regions of the brain are often most affected during the early stages of Alzheimer’s. It’s not known exactly why type O people have an advantage, although there’s evidence suggesting blood type affects neurological development early in life. A previous study on blood type and cognitive impairment found that people with AB blood types were approximately 80 percent more likely to experience cognitive impairment or decline than their type O counterparts. Since O positive is the most common blood type, this research is welcome news for many people, although there are other risk factors associated with Alzheimer’s that need to be considered in addition to blood type. 

If your elderly loved one is living with Alzheimer’s and needs help managing the symptoms, turn to Home Care Assistance, a leading provider of Alzheimer’s care. Tucson seniors can rely on our revolutionary Cognitive Therapeutics Method (CTM), an activities-based program that promotes cognitive health and delays the onset of Alzheimer’s disease. CTM also encourages seniors to engage with others in an enjoyable way and helps them build new routines to look forward to. To hire a professionally trained caregiver for your loved one, call us at (520) 276-6555 today.


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