Which of the following hormone is also known as flight or fight hormone?
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → Adrenaline
Adrenaline (epinephrine) is secreted by the adrenal medulla in response to stress or danger. It raises the heart rate and blood pressure, increases the supply of glucose and oxygen to the muscles and prepares the body either to face the danger or to run from it, so it is called the “fight or flight” hormone. Chemically it is an amine containing a secondary amino group.
Adrenaline is the same hormone as epinephrine; its response to danger (an external stimulus) is the “fight or flight” response.
NCERT (2026-27 edition):
Hormones – “… Hormones have several functions in the body. … The two hormones together regulate the glucose level in the blood. Epinephrine and norepinephrine mediate responses to external stimuli. Growth hormones and sex hormones play role in growth and development.”