Adrenaline is also known as the "fight-or-flight hormone." It's released in response to a stressful, exciting, dangerous, or threatening situation. Adrenaline helps your body react more quickly. It makes the heart beat faster, increases blood flow to the brain and muscles, and stimulates the body to make sugar to use for fuel.
When adrenaline is released suddenly, it's often referred to as an adrenaline rush.
Ye Tian Yun's body was currently going through an adrenaline rush. It wasn't a bad thing per say, in fact, the adrenaline rush rather helped the person from going through immediate pain.
The adrenaline rush was like a distraction to the body. The pain was there, it was just that the body wasn't focused on it. That's why the intensity of the main became minimal.
