Scientifically explained, the brain has only a limited capacity of nerve energy available. If this energy rises above the limit, the brain must discharge the energy into the body. The stress in
the brain, which is caused by external circumstances, seeks to channel the too much energy into the body. Some people have a tendency to discharge these brain waves into certain parts of the
body/organs. Some get back pain, headaches, others react with stomach ulcers, etc. Most often adrenaline, which is caused by stress, is conducted to the heart, which in turn can lead to cardiac
arrhythmias. The human being is sick.
Thus, there is a clear connection of body and mind. If you understand the connection between body and mind, you will be able to take better care of yourself.