Tetris effect

So, what is tetris effect? The name is actually from the game tetris itself. It is the feeling of after playing the game for so long your brain's eye actually can still see the blocks and stacking them, the tetris effect is not only exclusive for the game tetris. It is also applicable in other games and some life experiences, for example is having a jet lag because you've been inside a flying plane for hours and after you board down you feel dizzy it still feels like you are inside a plane, that is because your brain still thinks of that situation and would take time to recover.

So there is this Article I found in the internet titled "Dream machine" from the website cogweb.ucla.edu by Francis F. Steen. This article is about a experiment made by the scientists,they made 27 amnesia patients to play tetris for 3 days, 7 hours a day.  People who are expert and novice at playing the game, The scientists monitored their dreams in their sleep and 17 out of 27 people reported that they have dreamed about tetris pieces falling and more dreams came in the second night.

"People who devote a sufficient amount of time and attention with routine Tetris playing may begin to start seeing Tetris shapes and movements as a form of either habit or Hallucination in the corner of their eye or when falling asleep. You may perceive Tetris shapes that aren't there, or think of flipping around real-life objects as if they are Tetris shapes. "

This is quoted from the website omg-facts.com titled "There is an actual condition called the Tetris effect. It makes you see the Tetris shapes WHEN YOU'RE NOT PLAYING THE GAME" by Sebastian, FL. As a gamer I can really relate to this, for example is after I play I game for almost 6 hours like DOTA (Defense Of The Ancients) I am still hearing the characters voices and imagining what if I can use this skill to this specific experience I am encountering and in many times already I dreamed of playing it.

So, I think if we play a game or do something for hours before going to bed. There is a high chance that it will eventually be in our dream. So