生命体征：身体成分扫描真能取代体重秤吗

Body composition scans promise a more complete picture of your health than bathroom scales. But do they live up to the hype? What are body composition scans? This catch-all term refers to devices that estimate the percentages of fat, muscle, bone and water in your body. They can also break your total weight down into key components, including fat mass – distinguishing between subcutaneous and visceral fat – lean mass and bone mineral density. Why should I bother? They can provide a more detailed measure of health than bathroom scales or a body mass index (BMI) calculation, both of which can struggle to differentiate between muscle mass and body fat percentage in two people of the same height and weight. …