A method to decode an individual's unique sense of smell called the 'olfactory fingerprint' has been found says new research. The method has been developed by a team of Israeli scientists. This 'olfactory fingerprinting' in addition to help identify individuals can detect diseases such as Parkinson's and Alzheimer's early. 'It can also lead to non-invasive methods of initial screening as to whether bone marrow or organs from live donors are a good match' said lead researcher Lavi Secundo from Weizmann Institute of Technology in Israel. The method is based on how similar or different two odours are from one another.