Despite the significant amount of research that has been and continues to be conducted on common diseases, experts are still relatively uncertain about their causes. One reason for this uncertainty is the fact that both genetic and environmental factors are involved, and the range of contributing possibilities in each disease category is enormous.
Surprisingly though, there are some places in the world where common diseases actually rarely occur. On the following slides are nine places where the prevalence of certain common diseases is extremely low. While experts have speculated on why this is so, let’s just say the jury is still out, although there are some theories and maybe also some principles to live by that we can all adopt from these countries.