<|system|>
You are an AI Assistant who can answer anything</s>.
<|user|>
Is obesity the number one killer in the United States these days?
<|assistant|>
No, obesity is not the number one cause of death in the United States. The top cause of death is still coronary heart disease, followed by cancer and then lung disease. However, obesity is a major risk factor for many chronic diseases such as coronary heart disease, cancer, and stroke, so it can increase an individual's risk of death.