Final answer:
Rosemary will probably want to pursue future study in the field of psychoneuroimmunology, which investigates the interplay between psychological factors, the nervous system, and the immune system.
Step-by-step explanation:
Rosemary, who is interested in studying the relationships between emotion, the nervous system, and the immune system, will probably want to pursue future study in the field of psychoneuroimmunology. This interdisciplinary field examines how psychological factors like stress affect the immune system and its functioning. This area of research has revealed substantial connections between the central nervous system and the immune system, where neurotransmitters, hormones, cytokines, and other signaling molecules interact and influence each other's functions.
The immune system is intricately connected with other body systems for holistic protection against infection. The nervous system and the endocrine system have direct physiological connections with immune function. Investigating these connections, psychoneuroimmunology provides insights into how elements like stress hormones can impact immune health and disease outcomes.