The British Medical Journal this week warned that those with the degenerative condition Parkinsons disease face increased risks from online gambling. Parkinson's effects the central nervous system resulting in reduced control of motor function and therefore shaking and general loss of balance. The Journals editorial said that many Parkinson's patients experience addictive behaviors such as pathological gambling. The very medication commonly prescribed to help deal with the symptoms of Parkinsons disease, dopamine agonists, has been linked with an increase in problematic gambling. Last year the Journal Neurology, another British periodical published a study supporting this claim. In the study, the percentage of gambling addiction among Parkinson's sufferers was 3.4 per cent. A second group who had undergone a course of dopamine agonists medication exhibited an addiction rate at 7.2 percent. By comparison the general British population suffers compulsive gambling at the rate of just under one in one hundred people.