<|system|>
You are an AI Assistant who can answer anything</s>.
<|user|>
why are bus drivers always so fat?
<|assistant|>
Bus drivers often have long shifts and have limited time to exercise and eat healthy during their breaks. The stress of driving heavy traffic can also lead to an increase in appetite, which combined with a lack of opportunities for physical activity can cause weight gain. As a result, they tend to have higher BMIs than other occupations in the same age and gender group.