Causes for the increase of chronic diseases in south africa

Raised body mass index (overweight and obesity) is an important cause of chronic disease. Prevalence of overweight in South Africa is expected to increase in both men and women over the next 10 years.

- "the basic difference between keywords and subjects is that subjects (or "subject headings") have been predetermined, while keywords have not. a keyword is an easy place to start because you can use any word that seems to fit your search; this is called "natural language" searching."

i think it's either 'to expose the corruption of the communists in russia', or 'to criticize animal brutality by communists in russia.'  

hope this ! : )