The genetic history of the British Isles is the subject of research within the larger field of human population genetics. It has developed in parallel with DNA testing technologies capable of identifying genetic similarities and differences between populations.he genetic history of the British Isles is the subject of research within the larger field of human population genetics. It has developed in parallel with DNA testing technologies capable of identifying genetic similarities and differences between populations.
Brittle diabetesâalso called labile diabetesâis a rare but serious form of the disease in which there are dramatic and often unpredictable fluctuations in blood sugar levels. Blood sugar naturally rises and falls throughout the day in response to meals, exercise and other factors.
Diabetic retinopathy is a complication of diabetes and a leading cause of blindness. Diabetic retinopathy occurs when diabetes damages the tiny blood vessels inside the retina, the light-sensitive tissue at the back of the eye.A healthy retina is necessary for good vision.iabetic retinopathy is a complication of diabetes and a leading cause of blindness. Diabetic retinopathy occurs when diabetes damages the tiny blood vessels inside the retina, the light-sensitive tissue at the back of the eye.