All of our body systems are related to each other that’s how we are able to basically do everything we do. The skeletal system is the frame work of our body and it allows movement by using muscles to move and it gets its coordination from the central nervous system (Brain) the skeletal system also protects the nervous system such as the brain and spinal cord.
The nervous system controls various organs of the body directly. The brain also receives information from many organs of the body and adjusts signals to these organs to maintain proper functioning. The skeletal system makes up the framework of the body and allows us to move when our muscles contract.
Answer: It happens when the autonomic nervous system (ANS) doesn't work as it should. The autonomic nervous system is the body's "autopilot" system, controlling things like heart rate, blood pressure, and breathing. (I'm not sure tho)