Stress is a component that affects the normal regulations of human physiology. Neuroendocrine regulation is important in this abnormality. How does increased catecholamine and cortisol affect the immune system? 

Minimum of 250 words with at least 2 peer review reference in 6th edition APA style

Stress is a component that affects the normal regulations of human physiology. Neuroendocrine regulation is important in this abnormality. How does increased catecholamine and cortisol affect the immune system?