Prolonged stress inhibits the body's immune responses by ____.

A) using up all body reserves
B) increasing the release of cortisol
C) causing sodium and water retention
D) causing weight loss
E) increasing protein synthesis

Cortisol

A steroid hormone produced by the adrenal glands, often referred to as the "stress hormone" because its levels increase in response to stress and low blood-glucose concentration.

Immune Responses

The body's defensive reactions to foreign substances or pathogens, including the production of antibodies and other mechanisms of immunity.

Stress

A physical, mental, or emotional factor that causes bodily or mental tension, which can come from any event or thought that makes someone feel frustrated, angry, or nervous.