The History of Tetris and Its Link to Stress Relief

Origins of Tetris

Tetris was created in 1984 by Alexey Pajitnov, a computer scientist working at the Soviet Academy of Sciences in Moscow.

The idea came from puzzle games based on pentominoes (shapes made from five connected squares). Pajitnov simplified the concept into shapes made from four squares, known as tetrominoes.

The name Tetris combines:

• "Tetra" (Greek for four)
• "Tennis", Pajitnov's favourite sport

The first version ran on a Soviet computer called the Electronika 60, which had no graphics capability. The blocks were displayed using simple characters on the screen.

Global Popularity

Tetris spread informally around the Soviet Union through copied floppy disks before reaching international publishers.

In 1989, the game became globally famous when it was bundled with the Game Boy by Nintendo. This helped turn the handheld console into a huge success and made Tetris one of the most widely played games ever.

Today Tetris has appeared on almost every gaming platform, from arcades to mobile phones.

Why Tetris Can Relieve Stress

Researchers have studied why Tetris often feels relaxing despite being fast paced.

Key reasons include:

Focused attention

• The game requires constant spatial thinking and quick decisions.
• This absorbs attention and distracts the brain from worrying thoughts.

Predictable repetition

• The same core pattern repeats: falling pieces, rotation, line clearing.
• Repetition can create a calming rhythm.

Flow state

• Many players enter a psychological state called flow, where they are fully absorbed in the activity.

Psychological Research

Researchers at University of Oxford found that playing Tetris shortly after a traumatic event could reduce the number of intrusive visual memories, which are associated with post-traumatic stress disorder (PTSD).

The explanation involves how the brain processes visual information:

• Tetris heavily uses visual-spatial working memory.
• Traumatic memories also rely on visual imagery.
• Playing the game may interfere with how those memories are stored.

Because of this, psychologists have explored whether Tetris could be used as a simple early intervention technique after traumatic experiences.

The "Tetris Effect"

A phenomenon called the Tetris Effect occurs when people who play the game frequently begin noticing patterns everywhere.

Examples include:

• Mentally arranging objects into shapes
• Seeing imaginary falling blocks when closing their eyes
• Thinking about how objects could fit together like puzzle pieces

This shows how repetitive visual puzzles can influence the brain’s pattern recognition.