Overlooked Body Function May Predict Faster Alzheimer's, Study Finds
Summary
A new study found that lower heart function may lead to faster brain shrinkage in older adults who carry a gene linked to Alzheimer’s disease. Researchers followed more than 700 adults for up to 11 years and saw that those with lower cardiac output and the APOE-e4 gene experienced more brain volume loss in key areas related to Alzheimer’s.Key Facts
- The study involved 756 adults aged 50 to 92, followed for up to 11 years.
- Cardiac output measures how much blood the heart pumps.
- Lower cardiac output was linked to smaller brain volumes, especially in areas affected by Alzheimer’s.
- The APOE-e4 gene is a known genetic risk factor for Alzheimer’s disease.
- The study showed an association, not proof that lower heart function causes brain shrinkage.
- Brain imaging and heart tests were used to track changes over time.
- Results suggest even mild heart function declines can affect brain health in people at genetic risk.
- The research highlights the connection between heart health and brain health.
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