The researchers said improved cardiovascular care, better education, and being financially better off could be the main reasons.
The researchers found that:
- About 40 per cent of the decrease in cognitive impairment over the decade ending in 2002 was likely due to increases in education and personal wealth.
- They found this by comparing two groups of seniors, one at the start of the decade and one at the end.
- School attendance requirements, graduation rates in high school, enrollment rates in college or technical school, all went up in the period when the adults in the study were children and young adults.
- 72 per cent of people aged over 65 living in 2003 had a high school diploma compared with 53 per cent in 1990.
- The proportion of college-educated elderly also went up during that time, from 11 to 17 per cent.
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Bob DeMarco is the editor of the Alzheimer's Reading Room and an Alzheimer's caregiver. The Alzheimer's Reading Room is the number one website on the Internet for news, advice, and insight into Alzheimer's disease. Bob has written more than 950 articles with more than 8,000 links on the Internet. Bob resides in Delray Beach, FL.
Original content Bob DeMarco, Alzheimer's Reading Room