The samples are placed inside a high - pressure, high - temperature test cell created by the researchers. (sciencedaily.com)
For instructions on how to do this test yourself go to this link: Basal Temperature Test for Hypothyroidism (nourishholisticnutrition.com)
· High temperature tests in Death Valley, California (USA), Upington (South Africa), Idiada proving ground (Spain) and Phoenix, Arizona (USA) (thetorquereport.com)