Mahjongg

I don't know if this has anything to do with playing on a computer .. or, even, playing anything very quickly.

http://news.bbc.co.uk/1/hi/health/6931119.stm

But, they've found out that playing Majongg can bring on an epileptic seizure in susceptible people.

I know that strobe lighting can too.

I shall carry on playing on line though as it's rather different but it's worth knowing.