Have any challenges or pain of the chest, shoulders, arms and hands? Begin by looking at your ability to give and receive love - to other and self! The body's 4th energy zone is located at T1-T5, is connected to the cardiac nerve plexus and influences the heart and thymus. This zone is also related to the functions of blood pressure, immunity as well as muscles to the hands. A professional's inability to give and receive love in personal or professional life, either in the past or present can manifest as idiopathic physical symptoms.