“As you’ll learn in this book, research shows that human beings are hardwired to choose immediate gratification over benefits we have to wait to receive. Logic doesn’t motivate us—emotions do. But there is real science behind the idea that moving our bodies changes our brains in ways that lead to happiness and much more. The benefits that research shows for regular exercise are truly astounding: more energy, better sleep, less stress, less depression, enhanced mood, improved memory, less anxiety, better sex life, higher life satisfaction, more creativity, and better well-being overall.”