Throughout human history, there have always been mysterious phenomena that baffle us. For instance, how do brains that require no sleep function? How do these individuals sustain their lives? Today, we will unveil the stories of several insomniacs, exploring how they live and the secrets behind these phenomena.

In Sweden, a woman named Agulid has been unable to sleep since her mother's death in 1918, due to mental distress. Despite trying various medications, she continued to engage in household chores day and night. Remarkably, she remained mentally sharp and lived a normal life until she was 86 in 1973.

In Cuba, a man named Is has not needed sleep since he was 13 years old. After more than 40 years, in 1970, doctors conducted long-term observations and found that his brain was always active. Even when he closed his eyes, his brainwaves were indistinguishable from those when he was awake.

In the United States, Al Hertz is a legendary insomniac. He has never taken a nap, has no bed at home, not even a hammock. Nevertheless, his mental state and physiological functions exceed those of the average person. He reads at night to alleviate fatigue and continues to work during the day. Remarkably, he is still alive at 90, outliving many doctors who sleep normally.

In France, scholar Lerbed suffered brain damage from an accident in childhood, rendering him unable to sleep. However, through sheer willpower, he became a highly accomplished academic. In Spain, Setovia was awakened at 19 and has since required no sleep. He maintains his energy by reading and listening to the radio, living each day like an ordinary person, displaying astonishing endurance and vitality.