An untrained ordinary person could hold their breath for roughly thirty to fifty seconds at most. Any longer than that was difficult to sustain.
With training, however, a person's breath-holding time could reach an astonishing length! There was a small island in the East Ocean where the natives lived off the sea. Those people were like merfolk, able to hold their breath underwater for a very long time.
Most people could hold their breath for around twenty minutes, while some might reach thirty minutes.
But it was obvious that the Art Teacher had good physical fitness but had received no professional training.
She did not know that the more violently one moved while deprived of oxygen, the more oxygen the body consumed. She would feel suffocated sooner and die sooner as well.
Her head was buried deep in the soft sofa. Fern's arms were like the steel booms of a crane, without the slightest tremor or distortion, pressing down viciously all the while.
The Art Teacher's hands first shook violently, then changed to pounding, and finally clawing with her fingernails. She clawed so hard that her nails flipped backward!
Even though Fern's wrists had been clawed into bloody streaks, his hands never moved.
Her movements began as violent resistance, then gradually slowed.
About fifty seconds after Fern had clamped her neck, her nearly strengthless body suddenly began struggling fiercely again.
The burst of strength came quickly and was extremely ferocious. It was the body's final attempt when a person was on the verge of death, and the power it produced surpassed people's understanding. That was why her resistance was so powerful!
But no matter how great her strength was, it could not surpass Fern's.
After that sudden resistance, she fell completely silent.
Fern withdrew his hands, but the Art Teacher's