Researchers of the European Respiratory Society (ERS) International Congress performed an experiment to test if breath temperatures can be a signal for lung cancer. Higher breath temperatures have been proven to indicate airway inflammation and the formation of new blood vessels that may supply the growth of cancer cells in the lungs.  The results showed that 96% of the population with breath temperatures over 34°C have lung cancer. However, the researchers want to do further research and tests as there may be other factors affecting the higher breath temperatures in people.