“The amount of cases where individuals have died shortly after seeing their doppelgänger is more common than most and there is, in fact, scientific research which may support this. A study on a number of test subjects found that when certain areas of the brain were stimulated, the participants felt an outward presence of themselves standing in the same room. It is theorised that natural stimulation of certain areas of the brain through injury, illness or chemical imbalance could cause someone to hallucinate and see their doppelgänger. These illnesses or injuries could then go on to cause the death of these individuals, hence why the sense of impending doom surrounding the appearance of these apparitions exists.”