“Insufficient play is another major disconnect in modern life, causing reduced productivity, increased stress, and accelerated aging. Stuart Brown, author of Play: How It Shapes the Brain, Opens the Imagination, and Invigorates the Soul and one of the world’s leading experts on play, calls play a ‘profound biologic process.’ He explains that play, across the span of a lifetime, promotes the development and maintenance of a ‘cognitively fluid mind.’
“Cognitive fluidity—being able to go with the flow, think outside the box, process what-if scenarios, and react quickly and effectively to changes in our environment—is believed by anthropologists to represent one of the most profound breakthroughs in human evolution. This breakthrough in brain function, probably emerging 60,000 years ago, meant that humans’ brains could link knowledge from different domains. The way humans understood and approached the world became both more flexible and more expansive. This enabled more creative use of technology, better transfer of knowledge between generations, and a resultant spike in human longevity. Cognitive fluidity is still essential today, helping us adapt and thrive in a complex, high-tech society. When we get stuck in patterns of overwork and overstress, we lose that important connection with our creative, intuitive, playful selves. Our work suffers and so does our happiness.”
Mark Sisson is the founder of Mark’s Daily Apple, godfather to the Primal food and lifestyle movement, and the New York Times bestselling author of The Keto Reset Diet. His latest book is Keto for Life, where he discusses how he combines the keto diet with a Primal lifestyle for optimal health and longevity. Mark is the author of numerous other books as well, including The Primal Blueprint, which was credited with turbocharging the growth of the primal/paleo movement back in 2009. After spending three decades researching and educating folks on why food is the key component to achieving and maintaining optimal wellness, Mark launched Primal Kitchen, a real-food company that creates Primal/paleo, keto, and Whole30-friendly kitchen staples.