Humans prefer moderation - neither too hot nor too cold, neither too light nor too dark. But Earth doesn't cater to our preferences. Our planet offers an abundance of extreme conditions, and people everywhere have had to learn to adapt to their surroundings. "EXTREME! - Light and Dark" is a journey to the brightest and darkest inhabited areas of the world: places where a cloud hardly ever crosses the sky - or months pass without a single ray of sunlight reaching the ground. How does so much light, or so little, affect the mindset and emotional well-being of the people who live with it? How do they protect themselves? And how do they take advan- tage of their situation? Following the previous episodes of "EXTREME!"-"Valley Deep - Mountain High", "Drought to Deluge" and "Freezer to Furnace"- this episode brings to life the brightest and darkest places on Earth in spectacular images. 　　译文(2): 人类喜欢适度——既不太热也不太冷，既不太亮也不太【资源囤-ZiYuanTun.Com】。但是地球并不迎合我们的偏好。我们的星球提供了丰富的极端条件，世界各地的人们必须学会适应他们的环境。“极端！“光明与黑暗”是一次前往世界上最明亮和最黑暗的居住区的旅行: 那里的云几乎从来没有穿过天空——或几个月过去了，没有一丝阳光照射到地面。如此多的光线，或者如此少的光线，是如何影响生活在其中的人们的心态和情绪健康的呢？他们怎么保护自己？他们如何利用他们的处境？继前几集“极限!”之后- 「深山峡谷」、「旱至洪水」及「冷冻至熔炉」-这一集以壮观的画面呈现地球上最明亮和最黑暗的地方。