Xu: Do you know what is helpful to health?
Z: Yes, of course, they are physical exercise, balanced diet and living habits.
Y: Today, people are more concerned about today's health problems. They don't have more choices in food.
Zhang: Why don't you think so?
Y: Today, most foods are over-processed, some are genetically modified, and too many pesticides are used in agriculture.
X: People are busy at work, so they don't have much time to ask questions, so they eat fast food, because it will be very bad for their health at normal dinner time.
Yes, most of them sit in front of the computer all day, with stress, heart disease and so on.
Y: I think if we don't want to have a healthy body, we should eat more vegetables, fruits and grains, and don't eat too much sugar and other excessively compressed foods.
X: That's not enough. We need to do more outdoor activities, such as running, swimming and so on.
Z: We also need enough sleep. Do not smoke. I am sure that we have a healthy body.