Further reports on factors affecting the development of cognitive impairment are coming from the University of Philadelphia. Doctors there looked into how the state of nervous tissue is affected by hypoglycaemia, i.e. too low a blood glucose level. It turned out that a sugar deficiency not only temporarily impairs brain function - in the case of glucose deprivation, pathological proteins may accumulate in the brain, similar to those found, for example, in people with Alzheimer's disease.