Biomedical Breakthroughs:  The Answer is in the Blood

Human blood plasma contains many proteins from different origins, some of which can be used to diagnose diseases. Apart from the normal plasma proteins, it also contains all of the proteins that are leaked by tissues, as well as hormones, immunoglobulins (antibodies) and marker proteins of disease or infection.  As protein chip technology matures and routine plasma protein diagnostics become standard there will be a great leap forward in predicting physical and mental health problems.