Under what circumstances is it easy to get motion sickness

First of all, let's take a look at what situation or who is more prone to motion sickness:

1. People who are overworked or have poor sleep are also prone to motion sickness.

2. Too full or too hungry will also be more prone to motion sickness.

3. Certain ear diseases can also easily cause motion sickness.

4. In the confined space of the car, when there is no ventilation or other odor stimulation, it is easy to cause motion sickness.