• Cognitive decline naturally occurs as we age, with a common belief that dementia is the cause in most cases.
• Researchers at the Ohio State University say there are more factors causing cognitive decline than we once thought.
• Socioeconomic factors, physical health measures, and behaviors, including exercise and smoking, accounted for 38% of the variation between participants in their level of cognitive function at age 54, researchers reported.

By Corrie Pelc on February 10, 2023

Fact checked by Jessica Beake, Ph.D.

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