So, so, so skin.

Keep your good going and breeze through busy days with mullah lights.

Now with a new thicker recipe with Vitamin B6 and Vitamin D. Or go on then? Mull a light, get the good going. You're going to be. Hello, scientists with me Chris Smith and also with Ginny Smith hello Ginny.

Hi there now this week we want to hear how you're doing with your New Year's

resolutions as we investigate the psychology of willpower and how long it takes to form a new habit.

Plus in the news, does drinking a cup of coffee after studying help students remember

their work, and new super-thin electronics that could help monitor glaucoma.

And we also always set you a little tea time teaser to accompany the program.

This week's no exception.

Nicotine. We've been talking about New Year's resolutions.

People want to kick the smoking habit.

The reason we smoke is to obtain nicotine if we're hooked on it.

That's why we want nicotine.

But why do the plants that make tobacco make it?

What's the point of nicotine for a plant?

Let us know what you think.

Any thoughts, comments, questions or feedback to the naked scientist, Chris at the naked scientist dot com or tweet at naked

scientists the naked scientist podcast is powered by UK fast dot co dot UK. breakthroughs, Ginny. So I found a story this week about caffeine and being as in the Naked Scientists Office

at least caffeine is a big part of our day I thought that might be quite an interesting one to look at.

So people have used caffeine to help them stay awake and study for exams for a very long time,

but this new research by Daniel Barrota and colleagues says that it might actually be doing more than just keeping you alert.

Their paper, which was published in Nature

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