Everyone must be aware of the importance of keeping physically active when you have Parkinson's but, in my opinion, it is equally vital to give your brain a regular workout. Being mentally idle will only result in you starting to focus more on your PD with the result that you will be more likely to start suffering from depression. Achieving mental tasks will also promote a general feeling of well being. Suitable exercises for those little, grey cells can jnclude Suduko, crosswords, codewords and solving mathematical puzzles. I personally include writing poetry, reading the novels of Charles Dickens, studying foreign languages, reading Shakespeare's sonnets, listening to classical music, memorising the whole of Grey's Elegy, watercolour painting, wood carving and general knowledge quizzes. Believe you me, Parkies doesn't get a look in.