An independent UK inquiry estimated that perhaps one in five of the cancers detected via breast cancer screening are overdiagnosed.
Iron is a most versatile element. It is essential to many of the enzymes that are the engines for life, and in mammals is also used to carry oxygen on hemoglobin in blood.
Most of us know sugar is bad for teeth because it feeds bacteria that cause tooth decay. But fewer are aware that equally as damaging for teeth is acid, and that repeated exposure to high levels of acid can cause tooth erosion.