human
I've heard that there is a lot of pollution in cities. Is it safe to live in a big city?
assistant
Yes, living in a large city can be very polluted and unhealthy. However, there are many ways you can reduce your exposure to air pollutants, such as using an air purifier or wearing masks when outside. It's also important to stay hydrated by drinking plenty of clean water and eating healthy food. You should also try to exercise regularly to help keep your lungs healthy.