Hair can also be stimulated to conserve or release body warmth.

毛发也可以受刺激，保留或者释放身体的热量。

Even if it's minus 45 degrees Celsius outside, body warmth can heat an igloo to a balmy 16, a full 60 degrees warmer.

即使屋外是摄氏零下 45 度，雪屋内也能达到温暖舒适的零上 16 度，足足有 60 度的温差。