Why do I like using the back seat, but my girlfriend doesn't? She always said it hurt too much. Why?

There are many reasons why the back seat may cause pain. Here are some possible reasons:

1. Incorrect posture: When using the rear position, it is necessary to maintain correct posture, including body posture, leg posture and hand posture. If the posture is incorrect, it may lead to muscle tension or incorrect posture, which may cause pain.

2. Inexperience: Some people may not be familiar with using the back position. Inexperience may lead to muscle tension, incorrect posture or unskilled skills, which may cause pain.

3. Psychological factors: Some people may feel nervous or uncomfortable about this posture, and psychological factors may lead to physical or muscle tension, thus causing pain.

4. Physiological factors: the use of the posterior position may cause some physiological reactions, such as muscle tension and poor blood flow, which may lead to pain.

If your girlfriend doesn't like the posture of leaning back, you can try the above methods to alleviate the pain, and communicate with your girlfriend to find out why she doesn't like this posture and find other postures that are more suitable for her to meet her needs.