Facebook users who are not Candy Crush players may often find it irritating that the first thing they see when they check their newsfeeds are invitations to play the addicting game or updates on the level of their friends on Candy Crush.

Facebook game Candy Crush Saga King.com employees wear Facebook game Candy Crush Saga outfits in this undated picture from King.com in Stockholm. October 8, 2013.

Their friends' addiction is actually feeding King, the game's manufacturer, $670,000 every day from players who buy extra lives or access to the next level. Purchases are necessary because Candy Crush is designed in such a way that players are blocked for a period of time after they complete different levels.

YouTube/Apps Walkthough Guides

However, being Candy Crush addicts, a number of them are willing to part with their money just to have their daily Candy Crush fix.

An Aussie housewife shared with News.com.au of her frustration over the Candy Crush addiction of her husband who spends over $100 on the game. Another woman admitted to spending more than $1,000 on Candy Crash purchases done through Paypal.

Professor Sudhir Kale, a marketing and gaming expert from Bond University, explained that addiction, including that of Candy Crush, is triggered by the secretion of dopamine by the brain, the stimulating effect of which are similar when a person does cocaine or other recreational drugs.

However, he added that only about 1 per cent of gamers or gamblers are pathological gamers/gamblers. But with 45 million users of Candy Crush a month, based on AppDate figures, that's still 450,000 addicted Candy Crushers spending millions of dollars on purchases while King, the game developer, is candy crushing its way to the bank!

For those who want to stop their addiction to the game, here are 10 good reasons not to play it anymore.

YouTube/Myles Dyer