Virtual reality (VR) is a simulated experience that can be similar to or completely different from the real world. Applications of virtual reality include entertainment (e.g. video games) and education (e.g. medical or military training). Other distinct types of VR include augmented reality and mixed reality. VR is created with technology that recombines audio, video, and other sensory information to create an immersive, computer-generated environment. This environment can be similar to the real world or it can be completely different. For example, in the video game Minecraft, players can explore a blocky, pixilated world where they can build anything they can imagine. In contrast, in the VR game Beat Saber, players are immersed in a neon world where they must slash blocks to the beat of music.There are several different types of VR headsets, which range in price and features. The most basic VR headsets are smartphone-based, such as Google Cardboard and Samsung Gear