Adrenaline, also known as epinephrine, is a hormone produced by the adrenal glands in response to stress or danger. It is responsible for the "fight or flight" response, preparing the body for intense physical activity.
When adrenaline is released, it binds to specific receptors in the body, causing an increase in heart rate, blood pressure, and blood flow to the muscles. It also triggers the release of glucose and fatty acids, providing a burst of energy to the body.
The effects of adrenaline include increased heart rate, elevated blood pressure, dilated pupils, increased respiration, and increased blood flow to the muscles. It also temporarily suppresses non-essential functions such as digestion and immune response.
Adrenaline is released in response to stress or danger, such as a perceived threat, physical exertion, or emotional distress. It can also be triggered by certain medical conditions, such as anaphylactic shock or low blood sugar.
In normal situations, the temporary effects of adrenaline are not harmful. However, chronic stress and constantly elevated levels of adrenaline can have negative effects on the body, including increased risk of heart disease, high blood pressure, and anxiety disorders.