The collection of physical and emotional changes an individual experiences in response to stressors is called

Stress

Explanation:

Stress is an emotional, physical and psychological feeling that is related to the tension. Stress can occur due to any event, thought, and feelings that frustrated a person and his nervous system. Stress is caused due to the presence of the stress-or before the stress in the body. It is the reaction of the body to the challenge or the demand. But if stress caused for a long time it may harm psychologically and physically both.

Stress can be of two types:

Acute stress Chronic stress