The team discovered that brain temperature spikes in the run-up to a yawn, then starts to decline, and finally falls rapidly to pre-yawn temperature.
他们发现，马上要打哈欠的那一刻，脑部温度达到峰值，然后就开始下降，最后快速降到打哈欠以前的温度。
3
You’ll save trees, and you can say goodbye to spirals that eventually warp into wicked metal spikes that get tangled together and slash up your Ultimate Frisbee hand.