The science experiment you’re about to read is pretty creepy, but it also helps us know that almost everything has a logical explanation.

If you believe in ghosts or have played a game of Bloody Mary, stalking is inevitable. A true believer will say there is something paranormal, but scientists always reveal the facts. In many cases, what you think is another world is a figment of your imagination.

Check out some experiments that prove this point.

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Scientists have used electrodes and brain stimulation via a robotic device on subjects to prove that people believe in “spirits” that lurk, mimic movements and touch their backs.

The purpose of this experiment was to identify the parts of the brain that make people believe in ghosts.

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If you’ve ever played Bloody Mary by chanting her name while staring into a mirror by candlelight, she and other terrifying ghosts always appear.

According to scientist Dr. Giovanni Caputo, this is a real phenomenon, but caused by neural adaptations. In other words, if you look at the same thing for a long time, your neurons become jumbled.

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Scientists have used virtual reality to better understand how our relationship with our bodies affects our perception.

Using mannequins and dolls, study participants also began to think of their appendages as Barbie- or Bigfoot-sized, and found that those feelings caused considerable stress.

(Are you kidding me?)

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Short answer: No!

It all boils down to sleep paralysis. This is a condition in which you wake up, become immobile, and see surreal and frightening hallucinations.

Scientists tried to recreate the condition in order to achieve “abnormal dreams” by waking volunteers every hour until the hallucinations began.

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Some people can’t feel fear at all because their amygdala is underactive.

But scientists have found a way to scare them. I tricked their brains into thinking they were suffocating.

This was done by breathing high levels of CO2. Imagine never knowing that feeling.