Could these Amazonian tribes hold the secret to keeping dementia at bay?

The lifestyle of the Tsimane and Mosetén peoples from Bolivia might account for their very low rates of dementia. — AFP

Two indigenous groups in the Bolivian Amazon have been found to have a dementia rate of 1%, compared to 8% to 11% in developed countries.

According to scientists, their way of life and air quality may explain these findings.