Prof. Nicholson describes personalized medicine and how delivering the correct treatment for the right individual, based on their genes and environment, could be the future of healthcare. The use of mass spectrometry and NMR spectroscopy enables an overview of hundreds of thousands of metabolites in a single analytical run covering a large number of physiological and metabolic processes. This gives an insight as to how one might respond to treatment. Personalized medicine has the opportunity to save lives, shorten journeys, and save money. (For research use only)