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.

You're listening to Crowd Science from the BBC World Service where we go the

extra mile to answer your science questions. I say we but it's very much Anand

my friend, fellow presenter and science guinea pig who is going the extra mile

In preparation for this episode I sent him on a training swim in a freezing cold lake in North London.

Off you go, Annand.

Okay, well, I hate you, Marnie. The reason for getting Annan's to plunge into open water will soon become clear.

It's all in an effort to answer this week's question which comes from listener Moses.

Hello my name is Moses Samarange I live in Kampala in Uganda and my question for

crowd science is how can I motivate myself? So Moses wants us to look into the science behind motivation. What really is

the best way for us to motivate ourselves and once we've done that to stay motivated.

Now I should probably explain what this has to do with Anand

Larking about in a lake.

Hi Anand!

Hi, Anand! Hi, Marni, and I should just say that I was not larking about.

How was your swim? It was cold. I still don't really understand why you couldn't have done this because I am actually a very bad swimmer. I can just about stay afloat.

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