Our ability to think deeply is under assault from smartphones and social media, argues Georgetown computer science professor Cal Newport. In a new essay, he draws parallels between today's cognitive crisis and the mid-20th century health revolution sparked by President Eisenhower's heart attack, suggesting we need a similar transformation in how we value mental fitness.

Newport points to troubling data showing attention spans have shrunk by one-third since 2004, with the steepest declines coinciding with the rise of smartphones around 2012. Research links short-form video apps like TikTok to poorer cognition, while studies show even having a smartphone nearby reduces concentration. The author warns that as knowledge workers make up nearly 40% of U.S. GDP, this cognitive decline threatens economic productivity.

The piece traces how Americans transformed their approach to physical health in just decades - from fewer than 100,000 joggers in 1965 to 34 million by 1981. Newport argues we can achieve similar progress in cognitive fitness by treating deep thinking as a skill requiring protection and practice. He urges readers to resist the constant digital distractions that fragment our attention, warning that without intervention, our capacity for complex thought may continue its alarming downward trajectory.