Sufferers find increasing difficulty in moving their arms and legs.

BBC: Smokers and drinkers 'protected against Parkinson's'

"This has been generated from our difficulty in trying to find and recruit engineers, " Mr Holmes said.

BBC: Swindon railway works is preferred UTC site

The two firms, which have had difficulty serving their biggest customers at all points of the globe, will find it easier now they are in tandem.

ECONOMIST: Linde buys BOC, with a little help from its friends

CNNfyi.com updates the site in the early evening, so students may have difficulty finding it without the URL. You can find the lesson plan by going to the Subject Areas page and clicking PREVIOUS in the square for Today's Lesson Plan.

CNN: Discussion-activity: Yugoslav president's hold on power