The Tetris effect occurs when people devote so much time and attention to an activity that it begins to pattern their thoughts, mental images, and dreams. It takes its name from the video game Tetris.
The Tetris effect is all about focus.
If you focus on something for long enough, it shapes your thoughts and your world.
This is true of focussing on the positive things in life as wells the negative.
Be careful what you focus on – you just might get it.
Find out more here.