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About this app This is an application that induces lucid dreaming with stimulation by light and soun

防止失眠的措施 对于那些不能轻易入睡的人这个应用程序使用单声道节拍，这比双耳节拍更有效，诱导脑电波，导致睡眠良好。一个人的脑电波可分为β波（觉醒状态），α波（松弛），θ波（睡意）和δ波（睡眠）。有了这

The sound of the bell assists 4-7-8 breathing techniques. The 4-7-8 breathing method was invented by