Will was driving down a road one night. Suddenly, he noticed a man trying to cross the road just a little away from the car. Wil
l felt an intense fear and immediately became alert and slammed the breaks down hard, missing the man by inches. Which hormone was responsible for this reaction? a.Thyroxin
b.Melatonin
c.Prolactin
d.Epinephrine
Adrenaline is a hormone produced by the adrenal glands and prepares the body to perform physical activities and physical efforts. Adrenaline, or epinephrine, is a hormone and also a neurotransmitter, as it acts on the sympathetic nervous system.