Media multitaskers actually experience a thrill with switching—a burst of dopamine—that can be addictive. Without it, they can feel bored.

Entrepreneur magazine in which I would go on a 90-day mission to biohack my mind and body and develop a plan anyone could use based on what I discovered from biohackers, neuroscientists, doctors, psychologists, and more. This didn’t just mean getting better; it meant continuing to optimize and upgrade my performance. To do so, I had to ask the same