# 如果第一次跑步或騎自行車後,就算你沒有立即感受到注意力有所改善,也不應該就此放棄,因為大腦似乎會增加越來越多的多巴胺,所以跑步和騎自行車的頻率越高,多巴胺的獎勵也就越豐富。這——《真正的快樂處方》
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