Are people with O negative blood protected from getting dementia?

While people with O negative blood may have a slightly reduced risk of developing certain forms of dementia, it's important to note that this does not mean they are immune to the condition.

Blood type is one of many factors that can influence a person's risk of dementia, but it is not the only factor.

Factors such as genetics, age, lifestyle choices like diet and exercise, and overall health can also affect one's risk of developing dementia.

Research on the relationship between blood type and dementia has shown mixed results. Some studies have suggested that people with O negative blood may have a lower risk of developing Alzheimer's disease, the most common form of dementia. However, other studies have not found a significant association between blood type and dementia risk.

It's important to remember that dementia is a complex condition and there is no single cause. The risk of developing dementia is influenced by a combination of genetic, environmental, and lifestyle factors.