What happens after you die? Scientists explain visions and experiences of 'the other side'

In an article for The Conversation, they discussed the most likely triggers behind NDEs, such as neurochemical reactions in the brain during a moment of trauma.

Dr Dagnall and Dr Drinkwater said: “In our never-ending quest to understand what happens to us after we die, humans have long seen the rare phenomenon of near-death experiences as providing some hints.

“People who’ve had a brush with death often report seeing and experiencing life-altering events on ‘the other side,’ like a bright white light at the end of a long tunnel, or being reunited with lost relatives or beloved pets.

“But despite the seemingly supernatural nature of these experiences, experts say that science can explain why they happen – and what’s really going on.”

source: express.co.uk