Su He frowned and asked, "I can't control my autonomic nerves even if I'm not old. You talk about heartbeat and gastrointestinal stuff, I can't control them."
"You just don't know you can control them, doesn't mean you really can't," Shen Mu inquired, "Do you need to actively control when you breathe?"
"No, I do not."
"Normally you don't, but when I ask you this question, when you think about needing to breathe, you need to control your own breathing. Isn't it like driving a car, changing from automatic to manual control?"
Su He had already started to control his breathing and said sheepishly, "That's the way it works."
