It's a warm afternoon in Miami, and 35-year-old Emanuel Vega has come to Baptist Health Primary Care for a physical exam. Dr. Mark Caruso shakes his hand with a welcoming smile. Vega, a strapping man with a thick black beard, is feeling good, but he came to see the doctor today because his wife thought he should ? she even made the appointment. It is free to him under his insurance policy with no co-pay, as most preventive care is under the Affordable Care Act. Vega is one of more than 44 million Americans who is taking part in a medical ritual: visiting the doctor for an annual physical exam. But there's little evidence that those visits actually do any good for healthy adults.
