The impact of shift work | Horizon
Couples who are struggling with their sleep are helped by a sleep expert.
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The impact of jet lag | Horizon
Experimenters are inducing jet lag by waking Aldo up several hours early, what will the impacts be?
How does lack of light affect our body clock? | Horizon
Aldo is now living in the bunker with very limited artificial light to see the effects on his body clock.