The Mirage of Autonomy: The Truth Behind Gadgets That Measure Health and Sport
We live in an era where anyone can buy the same titanium ring worn by the CEO of a multinational tech company in Silicon Valley or the same bracelet that measures Cristiano Ronaldo's heart rate before he takes a penalty. On the surface, this is the end of dependence on the doctor's office to understand one's own body. Today, a glance at the wrist is enough to receive a verdict on the heart, sleep, or stress, but this apparent autonomy hides a paradox: while millions of people obsess over digital metrics, science warns that we are delegating our peace of mind to algorithms that often guess more than they diagnose.