1. Skeletal development: Sitting in a rocking car for a long time will make the child's bones in an unnatural posture, which will easily lead to skeletal dysplasia.
2. Spinal health: Sitting in a rocking car for a long time will make the child's spine in an unnatural posture, which will easily lead to problems such as spinal curvature and lateral curvature.
3. Muscle development: Sitting in a rocking car for a long time will make the child's muscles in an unnatural posture, which will easily lead to muscle atrophy and muscle weakness.
4. Vision health: Staring at the screen for a long time will make the child's eyes in an unnatural posture, which will easily lead to myopia, strabismus and other problems.
5. Mental health: Sitting in a rocking car for a long time will make children's psychology in a passive state, which is prone to problems such as loneliness and anxiety.