Stripping down science, the naked scientists.

The Naked Scientists. Hello, it's Sunday the 22nd of January 2012. Welcome to this week's naked

scientists. I'm Chris Smith and with me this week is Hannah Critchler.

Hello. Hello. And this week we're looking at vitamin D and also the unsettling suggestion

that the majority of people who are living at higher latitudes in other words us are

actually teetering on the verge of vitamin D deficiency. We'll hear why and we'll also find out how this can affect your health

in other ways including increasing the risk of multiple sclerosis and even

bowel cancer. And in the news this week why a good night's sleep might actually make painful memories harder to handle.

And also why seaweed might be about to ignite a biofuel boom,

thanks to a modified microbe with a taste for seafood.

So if you have any comments or questions for us,

you can tweet at naked scientists.

You can also write on our Facebook page,

that's at Facebook.com slash The Naked Scientists or you can send us an

email the email addresses Chris the Naked Scientist.com.

The Naked Scientists podcast is web at UK Fast.

UK Fast.

On the web at UKfast.

co-dot UK. And up first this week is University College London, reader in epidemiology and

public health, that's Eleanor Hippenun, who also works on vitamin D.

Hello Eleanor. Hello Chris. Thank you for being

with us on this dark night which is relevant with this subject so how deficient are we?

...