Researchers warn social media driving harmful misuse of Alzheimer’s blood tests
Summary
Researchers warn that social media is encouraging healthy people to take Alzheimer’s blood tests, which may cause unnecessary worry. These tests detect early signs of brain changes linked to Alzheimer’s, but a positive result does not always mean a person will develop dementia, and experts say the tests should only be used with other medical checks.Key Facts
- Alzheimer’s blood tests look for abnormal proteins related to brain changes in the disease.
- These tests are faster and easier than other Alzheimer’s diagnostic methods like brain scans or spinal fluid tests.
- Leading medical groups agree these tests should not be used on healthy people with no symptoms.
- Social media posts often promote these tests for people without symptoms, sometimes for financial gain.
- More than one-third of social media posts encourage testing healthy people, and posts with financial interests are over three times more likely to do so.
- A positive test result can cause anxiety but does not always lead to dementia.
- Doctors say tests should only be done when symptoms or risks suggest Alzheimer’s might be present.
- There is no clear guidance on what to do if a healthy person tests positive, and treatments are tested mainly in those with symptoms.
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