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Scientists Explain Why Taxing Mental Work Wears You Out_我的网站

A |     A team of scientists has discovered a likely explanation for why one may feel exhausted after engaging in intense cognitive work.,In their study, published in the Current Biology last week, the researchers argue that intense cognitive work, when it lasts for several hours, results in the buildup of potentially toxic byproducts in the prefrontal cortex part of the human brain, which then affects a person’s behavior.,“Influential theories suggested that fatigue is a sort of illusion cooked up by the brain to make us stop whatever we are doing and turn to a more gratifying activity,” Mathias Pessiglione of Pitié-Salpêtrière University in Paris, said as quoted in a news release by Cell Press. “But our findings show that cognitive work results in a true functional alteration—accumulation of noxious substances—so fatigue would indeed be a signal that makes us stop working but for a different purpose: to preserve the integrity of brain functioning.”,During the course of their research, the team employed magnetic resonance spectroscopy to monitor the brain chemistry of two groups of people during a workday, with one group performing easy cognitive tasks while the other engaged in more complex mental activities.,Only the latter group ended up exhibiting signs of fatigue, as well as a tendency to favor “options proposing rewards at short delay with little effort,” as the news release put it.,AmericasChild Survives After 7 Minutes Without Blood Flow to Brain During Surgery, US Cardiologist Reveals11 August, 16:41 GMT,Furthermore, members of that group had higher levels of glutamate in the synapses of the prefrontal cortex, leading the researchers to suggest that the accumulation of glutamate “makes further activation of the prefrontal cortex more costly,” and thus a mentally exhaustive workday makes cognitive control more difficult.,Unfortunately, there seems to be no fancy way to deal with this problem other than the tried and tested method that is probably as old as history itself.,“I would employ good old recipes: rest and sleep!” Pessiglione remarked. “There is good evidence that glutamate is eliminated from synapses during sleep.”。    

    
    　　爵士内线核心小贾伦-杰克逊做客播客节目《Numbers On The Board》，结合自己多年职业赛场的亲身经历，给队内一众年轻球员送上了实用的成长忠告。
    
    　　聊到年轻球员的心态管理，小贾伦表示，职业生涯想要稳步提升，最关键的是稳住自身情绪，不能赢球就过度亢奋、遭遇低谷便心态崩盘。同时千万不要抵触日复一日枯燥的基础训练，长期稳定的沉淀才是提升实力的根基。
    
    　　他还补充了自己的处事与比赛思路：无论赛场结果好坏，都不要急于一时大喜大悲，等到赛事全部结束后再庆祝、复盘；把注意力放在眼前的每一次训练、每一场比赛，专注当下才是快速进步的捷径。

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