In this episode, Michael Mosley shows how existence is a struggle and how, minute by minute, from your first breath to your last, your body performs countless small miracles to keep you alive.
The first full-length animated documentary made for British television takes us inside the counselling rooms of Relate, and gives an extraordinary insight into people's relationships.
Most people don't realise they snore, but do you know its causes, and the simple measures you can take to try and have a silent night?
Many of us feel tired now and again, but for some their tiredness is debilitating, causing prolonged fatigue and a range of symptoms.
We look at the causes and symptoms of chronic fatigue, also known as ME.
Discover all the essential stuff you need to know in our pregnancy guide. Find out how your unborn baby is changing from week to week with your own personalised pregnancy calendar. Take a sneak peak at how your baby is developing in our image gallery.
Find out more about some of the subjects in last week's episode.
More about Inside the Human Body
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