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Vitamins: how do they work?

BERNIE'S BASICS: We know vitamins and minerals are essential for good health. But what do they actually do in our bodies?

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You make me sick

BERNIE'S BASICS: We've all had a cold, man-flu or the odd case of the trots. But how do bacteria and viruses actually cause the symptoms that make us feel crook?

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Have you thanked your T cells today?

BERNIE'S BASICS: In the last 24 hours your body has killed countless viruses, bacteria and probably the odd tumour - and chances are your glands aren't even swollen.

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Stats without maths

BERNIE'S BASICS: You don't need to know your Chi square from your chai latte to make sense of statistical headlines. Just get your head around the lingo and some Year 5 maths.

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How UV light causes sunburn, wrinkles and cancer

UV AND ME: UV light causes everything from sunburn to skin cancer and the wrinkles and sagging that come with age. But what exactly does it do in our bodies to wreak all that havoc?

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What does nuclear radiation do to the human body?

RADIATION SICKNESS: Atomic weapons and nuclear accidents like those at Chernobyl and Fukushima have made sure we all know that nuclear radiation is dangerous. Bernie Hobbs explains what it actually...

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Meet the real culprits behind your cold or flu symptoms

BODY BASICS: Colds and flu are caused by viruses, but symptoms like runny noses, sore throat, fever and green mucus, are actually caused by a handful of chemicals in our own immune systems.

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