Researchers believe that the caffeine and polyphenol content in coffee are the protective factors.
Caffeine prevents the buildup of the protein that causes the plaques and tangles in the brain.
Researchers believe that these plaques and tangles are the key causes of dementia.
Caffeine is also an anti-inflammatory compound, and inflammation also appears to contribute to Alzheimer’s.
Polyphenol is an antioxidant, and also has an anti-inflammatory effect on the body.