First test to detect Parkinson"s disease developed by studying tissue taken from under the jaw

First test to detect Parkinson's disease spots tell-tale signs in saliva glands Doctors say tissue sample taken from the saliva glands could reveal abnormal protein, which is tell-tale sign But charity warns the study was small and too invasive to become a routine test By Anna Hodgekiss PUBLISHED: 17:06 GMT, 11 January 2013 | UPDATED: 17:14 GMT, 11 January 2013 Former boxer Muhammad Ali is one of world's best-known people to suffer from Parkinson's disease, for which is there is no diagnostic test Scientists have developed the first diagnostic test to detect Parkinson's disease.

From silencing snoring to easing depression, how doctors are using jolts of electricity to improve our health

From silencing snoring to easing depression, how doctors are using jolts of electricity to improve our health | UPDATED: 00:54 GMT, 22 May 2012 Every day, scores of patients across the UK receive electric shocks from their doctor.

Electro-convulsive therapy: How electric shock treatment can treat severe depression

Scientists finally solve 75-year-old riddle of how controversial electric shock treatment can treat severe depression Electro-convulsive therapy involves electric shock being passed through cortex of the brain | UPDATED: 22:59 GMT, 19 March 2012 Scientists have finally discovered how one of psychiatry's most controversial treatments can help patients with severe depression.