A: VR or virtual reality lets you explore things in 3D or 360 degrees in a simulated environment.
A: You wear a VR headset and feel yourself in a situation physically that you are seeing on the screen. The fact that you see all this in 3D makes you believe like everything is for real.
A: Yes, it is safe to experience VR. Some people may feel headache, motion sickness after using VR but thankfully their number is negligible. For most of the people, using VR is extremely safe and comes without any side effect.