A virtual reality experience developed by researchers from the University of Barcelona could help people with a crippling fear of death. Research professor Mel Slater and his colleagues made 32 subjects wear Oculus headsets and black suits. They also attached a bunch of movement trackers and vibrators to their ankles and wrists. With those components in place, the subjects' virtual bodies could match their real movements in the experience. Every time a VR ball hits their wrist or ankle, the vibrators would go off, as well. Both elements helped fool the volunteers' brain into thinking that the virtual body was their own, similar to the rubber hand illusion.