思维关键指标
在评估一个人健康状况时，许多专家开始一致认为心率变异性（HRV）是关键指标。那么，关于思维能力呢？思维的速度和质量。什么样的指标可以定义一个人在思维方面的优秀程度？我们将如何测量它？又该如何提升它？
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When it comes to tracking how healthy a person is, a lot of experts have started to converge on HRV (heart rate variability) as the key indicator.<p>What about for thinking? The speed, the quality. What could be a metric that would define a person is good at thinking? How would we measure it? How would we increase it?