And the Hello welcome to the naked scientists with me Chris Smith and also with

Kat Arnie this week the industry that dwarfs both Hollywood and the music world, believe it or not, it's computer games.

We'll be hearing how technology is changing the games of tomorrow,

and how gamers might be carving themselves a potential career in the military.

Plus the news that you might need a DNA test before you go on holiday in the future

also evidence that bees are attracted to insecticides and how color can affect your body clock.

The Naked Scientists Podcast is powered by UKfast.co.uk. dot UK.

First up, multiple sclerosis or MS is a major cause of disability in the population.

It's caused by the immune system attacking a substance in the brain

called myelin, which wraps around nerve fibers

and works a bit like the insulation around an electrical cable.

Loss of myelin is what causes the disability in MS sufferers.

But there are stem cells in the brain that can make new myelin,

and now Case Western University scientist Paul Tizar has found two drugs that are already on the shelves of the average chemist shop

which can kick-start these stem cells into action to repair the damage as he explained to Chris.

MS has a large patient population and of course the pharmaceutical industries have developed a large number of drugs to target this disease.

But all of these drugs are really focused on the immunological component of the disorder,

and they actually fail to regenerate the cells that are lost in the brain.

And so our goal was really to catalyze the body's own... in the brain and

instruct them to regenerate those specialized cells that are normally destroyed in multiple sclerosis

patients.

So how did you go about trying to persuade the brain to put itself right?

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