Research has shown that Chinese people, when doing problems, end up ruining their hearts.

Chinese students, who have been under high-pressure study for the long term, suffer lifelong, irreversible, and unrepairable damage to their bodies.

After sitting down, the resting heart rate of Chinese students is clearly higher than that of American students—it’s basically abuse. And then...

The terrifying part: the overall decline in HRV among Chinese students is clearly noticeable.

What the heck is HRV? You can simply understand it as your body’s ability to fight off sudden cardiac death.

Academically: HRV is the time interval between each heartbeat—whether it changes flexibly. What does that mean?

Higher HRV: autonomic nervous system regulation is more flexible, the body recovers better. It’s usually seen when you get enough sleep, exercise well, and have lower stress—so you can endure more, and you’re less likely to die suddenly.

Lower HRV: the body is more tight and tense. It’s commonly found with fatigue, late nights, anxiety, infection, drinking alcohol, overtraining, or long-term stress—making sudden death more likely.

Based on this, it seems that people in China are now more prone to sudden death—dying suddenly while driving, waiting for a vehicle, riding in a car, dying suddenly at a train station, and so on. Random reasons for dying.

In all likelihood, it’s because back then in middle school and high school, you were persecuted by exam scores, and your body was subjected to irreversible damage.

Then in adulthood, you continue living under high pressure—mortgage stress, 996 work culture, children’s education, parents’ NPD, and so on. Taken together, it seems Chinese people are very resilient. But if you put Americans through the same life for 30 years of hellish Asura, they’d probably have a sudden death rate of 80%.