Quality of life (QoL) is recognized widely as an important health outcome in diabetes, where the burden of self-management places great demands on the individual. If you take blood from your finger, you should wash your hands with soap and warm water before taking the blood sample. While blood glucose meters, insulin pumps and continuous glucose monitors (CGMs) have evolved to allow people with the condition to live healthier lives than ever before, the enormous amounts of inaccessible data within these tools have led to a communication breakdown between patients and their physicians. In Group 1 subjects, Sustacal proved to be a highly reproducible test stimulus producing identical results on two tests 7-14 days apart. Dop- and Osc-ABI were significantly related in diabetic and nondiabetic patients with good agreement over a wide range of values. We conclude that insulin resistance in patients with insulin-dependent diabetes mellitus is attributable to a decrease in both the rate and amplitude of response to insulin. However, the problem faced by researchers is that FIR light penetrates only a few microns from the skin’s surface, which makes detection of blood glucose difficult.