I'm 27 and paid $156 for a buzzy health test, fearing I was unknowingly sick. It was reassuring but I felt scammed.

 Getty Images; Chelsea Jia Feng/BIThe idea that testing and tracking your health will help you live longer is buzzy right now.I feared I had problems like high cholesterol or blood sugar and paid $156 for a direct-to-consumer health test.I learned there isn't good evidence that these general tests improve our health.It was a Friday afternoon in London's financial district and I was standing barefoot on a scale, blood freshly extracted from my arm.I'd just spent $78 to have my heart health,