Many wage earners work long hours and often have to work overtime. In addition to physical labor, long-term overuse of the brain will make people feel tired. A French study pointed out that when the brain is used for cognitive work for a long time, potentially toxic substances will accumulate in the brain, causing fatigue and prompting people to suspend work and rest.
The research was published inCurrent Biology” journal, French researchers pointed out that after the human brain continues to operate at a high speed, it will cause the neurotransmitter “Glutamate” to accumulate in the “Prefrontal Cortex” of the brain, thereby affecting judgment and decision-making. Ability.
Using magnetic resonance spectroscopy (MRS) technology, the researchers monitored the brains of 40 participants, who were assigned test tasks of varying difficulty. It was found that participants who performed difficult tasks were more likely to show signs of fatigue and had higher levels of glutamate in the brain’s prefrontal cortex.
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The researchers pointed out that it is easy to ignore the body’s warning signs, unaware of their fatigue level, making mistakes at work. While previous theories have suggested that fatigue is an hallucination created by the brain, the results of this study suggest that cognitive work can lead to real brain changes and the accumulation of potentially toxic substances, so fatigue is a wake-up call for people to stop working.
As for how to relieve the fatigue caused by using the brain? Experts point out that rest and sleep are the best methods.
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According to the 2022 work-life balance survey conducted by the United States, Hong Kong ranks second in the world in terms of “work intensity”, “social infrastructure” and “city livability” compared with 100 cities around the world. name.
Chen Yixian, president of the Hong Kong College of Cardiology, said in an interview with TOPick that according to research, sleep less than 6 hours a day is considered insufficient sleep. People who don’t get enough sleep have a 15% increased risk of cardiovascular disease. Stroke, irregular heart rhythm, and even sudden thrombosis are more likely to cause sudden death.
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Responsible editor: Luo Jiaxin