Free adrenaline, also known as epinephrine
Adrenaline, also known as epinephrine are released in our bodies when we get scared or frightened.
When frightened, your body floods with the hormone adrenaline. This skyrockets your heart rate and blood pressure.
Even thou I have researched and learned a lot about spiders, it always amaze me when one runs over my hand unexpectedly.
The adrenaline is undescribable.