Something weird seems to be happening to our weather - it appears to be getting more extreme.　　In the past few years we have shivered through two record-breaking cold winters and parts of the country have experienced intense droughts and torrential floods. It is a pattern that appears to be playing out across the globe. Hurricane chasers are recording bigger storms and in Texas,...

有位年轻人要去查明究竟自己的大脑发生了什么，使他变成了一个完全不同的人。21岁时的克里斯本是个魁梧的英式橄榄球运动员，绝对直男；然而一场意外却激发了他大脑中的某些地方，当他恢复后，一个崭新的克里斯出现了。今天他仍然居住在原来的威尔士村庄中，却变成了一个苗条的同性恋发型师，对时尚和室内装饰感兴趣。这种彻底的改变令他的家庭产生了裂隙，亲戚们正在努力接受他的新身份，纷纷疑惑这种转变是怎样发生的。本纪录片追随了克里斯寻找问题答案、与医学专家及其他曾有过类似出乎意料的个性转变的人们进行交谈的过程。克里斯能重新凝聚他的家庭吗？他能查明自己的大脑究竟发生什么事了吗？而且现在他已经和男友同居了，他能保证自己不会“复原”，变回到原来的自己吗？

癌细胞是细胞变异产生的错误结果，一旦无法摧毁，则会分裂扩散，这是人类作为细胞生物所要承受的痛苦之一。目前有效抗癌的手段只有射线疗法，但科学家们一直在此领域上研究，并取得了一定进程。

本部纪录片是导演迈克尔·艾普特从1964年开始拍摄的纪录片系列的第八部。迈克尔·艾普特在1964年为英国BBC电视台拍摄了记录片《7 Up》，采访来自英国不同阶层的十四个七岁的小孩子，他们有的来自孤儿院，有的是上层社会的小孩。此后每隔七年，艾普特都会重新采访当年的这些孩子，倾听他们的梦想，畅谈他们的生活。人生行至大半，岁月蹉跎。是悔恨感慨，还是遥想当年风华正茂。年华终有老去的一天，可生活仍将继续。　　陪伴这些孩子度过半个世纪的导演迈克尔?艾普特也已两鬓斑白，《人生七年》还将继续。

Marcus Du Sautoy wants to find out how close we are to creating machines that can think like us: robots or computers that have artificial intelligence.　　His journey takes him to a strange and bizarre world where AI is now taking shape.　　Marcus meets two robots who are developing their own private language, and attempts to communicate to them. He discovers how a super computer bea...

Surgeon Gabriel Weston 为我们寻找变胖的真相。

我们做的锻炼大部分是无效的？运动能消耗多少卡路里？去除脂肪的最佳方法是什么？一周只锻炼三分钟就够了？久坐真的是健康杀手吗？Michael Mosley通过亲身实践，得出了一些关于锻炼的惊人真相，帮助人们走出误区，获得健康长寿。

Horizon plunges down the biggest rabbit-hole in history in search of the smallest thing in the Universe.　　It is a journey where things don't just become smaller but also a whole lot weirder. Scientists hope to catch a glimpse of miniature black holes, multiple dimensions and even parallel Universes. As they start to explore this wonderland, where nothing is quite what it seems, ...

Horizon goes behind the scenes at NASA as they countdown to the landing of a 2.5 billion-dollar rover on the surface of Mars. In six days time, the nuclear-powered vehicle - the size of a car - will be winched down onto the surface of the Red Planet from a rocket-powered crane. That's if things go according to plan: Mars has become known as the Bermuda Triangle of space because...