Old diabetes drugs slash the risk of dementia by more than a FIFTH, study finds

Old diabetes drugs slash the risk of dementia by more than a FIFTH, study finds A class of diabetes drugs that have fallen out of fashion may help prevent Alzheimer's, a major study suggests. 

Thiazolidinediones (TZDs) reduced the risk of developing the disease by more than a fifth in a study of more than half a million patients.

The drugs are thought to work by reducing bad cholesterol in the blood and boosting blood flow and oxygen supply to the brain. The Daily Mail