Body Clock: What Makes Us Tick?

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Ella Al-Shamahi

Aldo Kane

Tom Cook

David Dugan

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Horizon: 2018: Episode 9: Body Clock: What Makes Us Tick?

Factual: Health & Wellbeing

Episode 9

Episode 9: Body Clock: What Makes Us Tick?

2018

BBC Two - Horizon, 2018, Body Clock: What Makes Us Tick?

Scientists lock a man in a nuclear bunker to uncover how our body clock affects our health

Documentary. A former commando spends ten days locked in a nuclear bunker, with no way of telling the time, to find out how best to manage our body clock and improve our health.

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: 2018

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Episode 9: Body Clock: What Makes Us Tick?

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