I've been tracking my own health data with a smartwatch for over a year, and last week it flagged an irregular heartbeat that my doctor later confirmed. That got me thinking—are wearable devices like these genuinely helpful in preventive healthcare, or do they create unnecessary anxiety and false alarms? I know some people who've made risky decisions based on fabricated readings, but I also see the potential for early intervention. With the market for these gadgets expanding rapidly, I wonder if the benefits outweigh the drawbacks for the average user.