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Programme warning: I may remove some items of clothing during today's show. And show a little bit of leg.

The reason? We're looking at computer games.

You might think it's all about spotty teenage boys playing "shoot-'em up" war games in their bedrooms.

You'd be wrong.

The industry has been trying for years to widen their appeal. Nintendo - our big guest today - has a suite of games to help the middle-aged fight the flab (hence today's beauty show ...)

And the elderly are also a key market.

In Japan, - using computer games to do puzzles, drawing and catch up on their reading.

It's no surprise that companies in Japan are going after senior citizens - according to that Guardian report linked above, about 20% of Japan's 127 million-strong population are aged 65 or older; that's expected to rise to almost 30% by the year 2025.

These games are being marketed here in the UK as well.

And there are claims that computer games - rather than rotting your brain, as grumpies might mutter under their breath - can keep it ticking over.

suggest older people who play computer games have sharper memories and are better at doing several tasks at once.

That's why one major insurance company in the United States - Allstate - is - to see if it makes them better drivers.

And it's why and have installed computer games consoles - to keep their residents fit - both mentally and physically.

If you're an older person who's a regular gamer - get in touch. What got you into it? Has it made your mind sharper? Email us or add a comment.

Why does any of this matter in business terms? It's a decent sized money-spinner for UK plc - and it's one of those creative industries we're told will be the basis of our economic future.

According to its trade association, games made in the UK in the last two years will generate global revenues of £4bn. And it reckons that - credit crunch or no credit crunch.

PS Working Lunch viewers Brian Smith and Stuart Stokes have both emailed already, to ask why some games are not available in stores - and can only be found online, through re-sellers and collectors who are charging up to 3 times the price. This is all about stock control. Every year the games companies warn they may "run out" ahead of Christmas, and it always makes us a bit suspicious. Are they really swamped by customer demand, year after year - or do they ration the stock to whip up a bit of excitement and hype. We'll ask Nintendo's UK boss at 1230.