A new study from France found that people who delay retirement have less risk of developing Alzheimer's disease or other types of dementia, with the risk reduced 3.2% for each additional year of work.,

Researchers say the conclusion makes sense, since working tends to keep people active, socially connected and mentally challenged, which are all known to help prevent mental decline.

Heather Snyder of the Alzheimer's Association says this doesn't mean everyone has to delay retirement. She said it's important to stay cognitively challenged, socially active and continue to be engaged in activities that are enjoyable to you.

[Associated Press]