Secondly, the citizens’ health is also affected by ordering food delivery. Many people tend to buy their meals through food delivery, but it leads to the fact that they might order more unhealthy foods without noticing. The food choices on food delivery applications tend to have calorie-rich foods, and people may rapidly order instead of having adequate consideration. Moreover, food preservation is also an important issue to notice. After customers order their food and the restaurant finishes cooking, the meal has to wait for the food deliverers to come and spend time sending the meals to the customers’ hands. Not to mention if the deliverer has two orders to deliver at the same time, the leaving time of the meal will be much longer. These situations can seriously result in the deterioration of food and may even breed bacteria which can lead to sickness or stomachache. Even though food delivery provides convenience that enables people to buy food without going outside, there are still possibilities of causing health problems.