In his book, Guo cites the rates at which chickens, dogs, cows, elephants, tortoises, and human beings breath and demonstrates that species which breathe more slowly have longer average life expectancies.
郭育祥在《不想生病，就搞定自律神經》一書中，列出雞、狗、牛、大象、烏龜和人的呼吸頻率，證明呼吸頻率越緩慢的動物，平均壽命越長。