DDT linked to Alzheimer's disease

long-term exposure to the pesticide (DDT) can increase the likelihood of developing Alzheimer's disease, research by U.S scientists suggested.

DDT was a massively successful pesticide, initially used to control malaria at the end of World War Two and then it was used to protect crops in commercial agriculture
Alzheimer's Research UK said more evidence was needed to prove DDT had a role in dementia.

Some countries still use the pesticide to control malaria.However the pesticide (DDT) was banned in the US in 1972 and in many other countries. But the World Health Organization still recommends using DDT to keep malaria down.