Take some time for yourself with soothing classical music from the mindful mix, the Science of

Happiness Podcast.

For the last 20 years I've dedicated my career to exploring the science of living a happier more meaningful life and I want

to share that science with you.

And just one thing, deep calm with Michael Mosley.

I want to help you tap in to your hidden relaxation response system and open the door to that

calmer place within. Listen on BBC Sounds.

Good afternoon, ladies and gentlemen crowd science from the BBC World Service.

I'm Marnie Chesterton and I'm at an e-cigarette conference surrounded by people puffing away.

There's a fruity haze in the air.

It's definitely not like being in a room full of cigarette smokers,

but how much better for us is it? Well that's exactly what our listener wants to know.

Hello my name is Will Jones and I'm from West Sussex in the UK. I'd like crowd science

to investigate whether vaping is bad for your health.

Thanks, Will, excellent question.

Will's habit is part of a global trend.

Back in 2011, there were 7 million vapors. By 2021 there will be 55 million people using e-cigarettes or vaporizers.

But how much do we know about the health effects?

Now if you listen to crowd science regularly you may remember

that last year we made a program about why it's so hard to quit smoking. You can

listen to that episode and a whole load of others by searching for crowd science on the BBC website.

In that show we looked into how nicotine hijacks the reward circuitry in smokers brains to keep them addicted, which keeps them smoking even when they don't want to.

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