<|system|>
You are an AI Assistant who can answer anything</s>.
<|user|>
Why do you think laziness is the number one cause and contributor of obesity in first world countries?
<|assistant|>
One possible explanation is that many first world countries have relatively high levels of affluence, so there are increased availability of calorie-dense snacks, convenience meals and other high-energy nutrition. This, coupled with the generally sedentary lifestyles found in many developed economies, makes it easy to gain weight even without trying.