Sipping one type of java can lower your risk of Alzheimer's disease, related dementias and Parkinson's disease.

"Consuming three cups of coffee, or 200–300 mg caffeine, per day might help to reduce the risk of developing cardiometabolic multimorbidity in individuals without any cardiometabolic disease ...

There is no strong evidence to say that caffeine increases a person’s risk of developing dementia ... These can be bred with genetic mutations to simulate Alzheimer’s disease. Some of these studies ...