While you are taking Coumadin, be sure to tell your doctor if you change your diet or eating pattern because this is likely to change your vitamin K intake. Your doctor can monitor your PT/INR test closely when your diet changes and can adjust your Coumadin as needed.
The experiments took place at Western Electric's factory at Hawthorne, a suburb of Chicago, in the late 1920s and early 1930s.
The original purpose of the experiments was to study the effects of physical conditions on productivity. Two groups of workers in the Hawthorne factory were used as guinea pigs. One day the lighting in the work area for one group was improved dramatically while the other group's lighting remained unchanged.