At the Division of Neurosurgery at Lund University in Sweden an experiment on rats has been carried out. Rats exposed to cell phone radiation for more than a year turned out to have poorer results on a memory test than those that had not been exposed to it.
The experiment supervisor thinks that cell phone radiation affects the blood-brain barrier, which protects the brain from substances in blood that are dangerous to nerve cells. It was previously discovered that a protein albumin leaks into brain tissue while the latter is exposed to radiation, and nerve cells become damaged in 4-8 weeks. Two types of nerve cells suffer: those in the cerebral cortex and the memory center of the brain.
Within the experiment alterations in the activity of a large number of genes belonging to functionally related groups have also been found.