为什么在八点钟在早上你更可能有心脏病，或下午两点钟在高速公路上撞坏你的车？在正确的时间吃药真的挽救你的生命？你是不是曾经想知道为什么青少年在上午很不想起床？ 　　这些问题的答案在生物钟的秘密。

为什么在八点钟在早上你更可能有心脏病，或下午两点钟在高速公路上撞坏你的车？在正确的时间吃药真的挽救你的生命？你是不是曾经想知道为什么青少年在上午很不想起床？ 　　这些问题的答案在生物钟的秘密。

Horizon is BBC Two's flagship 50-minute science documentary series. In September 2004 it celebrated its 40th anniversary and it continues to enjoy outstanding critical acclaim. Recognised as the world leader in its field, it regularly wins a sweep of international science, medical and environmental film accolades, and has recently won the Royal Television Society Award and the Prix Italia. In 2002, the British Academy of Film & Television Arts presented Horizon with the BAFTA Television Award for Best Factual Series or Strand. In 2003 it won the prestigious Images et Science award for best medical documentary and the Carl von Linne Award at the Living Europe film festival in Sweden. That year, a Horizon co-production with WGBH Boston won the Emmy for best documentary.

Horizon is BBC Two's flagship 50-minute science documentary series. In September 2004 it celebrated its 40th anniversary and it continues to enjoy outstanding critical acclaim. Recognised as the world leader in its field, it regularly wins a sweep of international science, medical and environmental film accolades, and has recently won the Royal Television Society Award and the Prix Italia. In 2002, the British Academy of Film & Television Arts presented Horizon with the BAFTA Television Award for Best Factual Series or Strand. In 2003 it won the prestigious Images et Science award for best medical documentary and the Carl von Linne Award at the Living Europe film festival in Sweden. That year, a Horizon co-production with WGBH Boston won the Emmy for best documentary.

究竟是哪里疼呢？从出生那一刻到最后离开这个世界，我们总在经历着疼痛。我们毕生都在努力避免它，但是疼痛却是我们生存的关键因素。该片借助遗传学、最新的扫描技术、虚拟现实技术和催眠术，为我们解开一些疼痛背后的奥秘。让我们一起了解为什么有些人觉得比其他人更痛，而有些人却根本不知道疼痛为何物，本片带我们共同发现为什么情绪和想法可以影响我们对疼痛的感知。

究竟是哪里疼呢？从出生那一刻到最后离开这个世界，我们总在经历着疼痛。我们毕生都在努力避免它，但是疼痛却是我们生存的关键因素。该片借助遗传学、最新的扫描技术、虚拟现实技术和催眠术，为我们解开一些疼痛背后的奥秘。让我们一起了解为什么有些人觉得比其他人更痛，而有些人却根本不知道疼痛为何物，本片带我们共同发现为什么情绪和想法可以影响我们对疼痛的感知。

We all have a biological clock ticking away inside us that governs our daily rhythms. This affects our health as much as our diet and whether we exercise. So what can we do to manage this internal clock better? 　　To find out, evolutionary biologist Ella Al-Shamahi locks former commando Aldo Kane in an abandoned nuclear bunker with no way of telling the time - for ten days. Monitored around the clock by a team of scientists, he carries out a barrage of tests to uncover exactly what makes our body clock tick. 　　Above ground, Ella meets two time-starved couples to test the latest thinking on how we can manage our body clocks better. In trying to improve their sleep, and their lives, she uncovers practical advice that we can all take on board. Studies on shift workers show that regularly disrupting our sleep makes us more at risk of diabetes, heart disease and even cancer. So getting to grips with our biological clock couldn't be more important.

We all have a biological clock ticking away inside us that governs our daily rhythms. This affects our health as much as our diet and whether we exercise. So what can we do to manage this internal clock better? 　　To find out, evolutionary biologist Ella Al-Shamahi locks former commando Aldo Kane in an abandoned nuclear bunker with no way of telling the time - for ten days. Monitored around the clock by a team of scientists, he carries out a barrage of tests to uncover exactly what makes our body clock tick. 　　Above ground, Ella meets two time-starved couples to test the latest thinking on how we can manage our body clocks better. In trying to improve their sleep, and their lives, she uncovers practical advice that we can all take on board. Studies on shift workers show that regularly disrupting our sleep makes us more at risk of diabetes, heart disease and even cancer. So getting to grips with our biological clock couldn't be more important.

Horizon follows the emotional journey of three young people with currently untreatable conditions to see if within their lifetime, they can be cured. 　　Sophie is desperate to discover if there's a medical breakthrough which will get her walking again - a car crash after celebrating her A level results left her paralysed from the waist down. Anthony's leg was amputated after a rugby accident on the eve of his eighteenth birthday. Will he ever be able to regrow his leg? Father of four Dean is desperate for a cure for his damaged heart to avoid an early death. They've all read the headlines about the astonishing potential of stem cells to heal the body. Now they've been given access to the pioneering scientists who could transform their lives. 　　With so much at stake, each meeting is highly emotional as our three young people find out if science can fix them.

Horizon follows the emotional journey of three young people with currently untreatable conditions to see if within their lifetime, they can be cured. 　　Sophie is desperate to discover if there's a medical breakthrough which will get her walking again - a car crash after celebrating her A level results left her paralysed from the waist down. Anthony's leg was amputated after a rugby accident on the eve of his eighteenth birthday. Will he ever be able to regrow his leg? Father of four Dean is desperate for a cure for his damaged heart to avoid an early death. They've all read the headlines about the astonishing potential of stem cells to heal the body. Now they've been given access to the pioneering scientists who could transform their lives. 　　With so much at stake, each meeting is highly emotional as our three young people find out if science can fix them.