The article discusses how changes to diet and decreased physical activity have negatively impacted health in some countries. Specifically, it notes that consumption of canned foods high in calories and fat have led to increased obesity rates in places like Samoa, where obesity cases have doubled. A similar situation occurred in Fiji. Less physical activity as people spend more time in sedentary jobs and activities like watching TV has also contributed to declining health. The article analyzes how the switch to imported canned goods and adoption of Western lifestyles has worsened health compared to when diets consisted of homegrown fresh foods and more physical labor was the norm.