21 hours of video games per week is good for the brain - Big Think

A study of 2,217 kids found that those who played 21 hours of video games per week had greater cognitive abilities than kids who played none.

The Effects of Gaming 20+ Hours Per Week: A Data Analysis - Psychology and Video Games

The impact of video games on the brain and body – Horus X

21 hours of video games per week is good for the brain - Big Think

Are Video Games Good for You?

SuperBetter: The Power of Living Gamefully: McGonigal, Jane: 9780143109778: : Books

Now Time to Play - The New York Times

The impact of video games on the brain and body – Horus X

The impact of video games on the brain and body – Horus X

Why playing video games is good for your brain

How gambling affects the brain and who is most vulnerable to addiction

Children and Technology: Positive and Negative Effects

Want to Fix Your Mind? Let Your Body Talk. - The New York Times

This is what Candy Crush Saga does to your brain, Neuroscience

6 Flow Activities & Training: How to Achieve a Flow State

This scientist gave Stephen Hawking his voice — then lost his own - Big Think