The fight-or-flight response

The fight-or-flight response.

Adrenaline, also called epinephrine, is a hormone that triggers the body's so called fight-or-flight response. It is produced when a situation requires immediate action.

Adrenaline is produced in stressful situations by the adrenal glands. The hormone prepares your body for immediate action by:

1)increasing blood pressure

2)expanding airways

3)directing blood towards heart and lungs

4)reducing pain sensibility

5)dilation of the pupil

6)altering metabolism to release sufficient amount of glucose as a source of energy