India, March 4 -- We have always heard journaling or writing your diary is a very good habit. Nobody's explained to me how it helps or why it's such a good habit.

Having done it for some time, I finally found an answer to both those questions. This is how it's worked for me.

The Tetris Effect

Before I get to journaling, let me first explain the Tetris Effect. It's a term from psychology and its also known by a lot of other names.

Have you ever had a marathon session playing any video game. It could be Tetris, or Grand Theft Auto, or FIFA or even Candy Crush. Where you have played it everyday for a few hours or just stayed up all night playing it.

What usually tends to happen after an overdose of any such game, is that you start to se...