Are blood tests as definitive as people assume?

The Photovoltaic Podcast · Jul 2, 2021 · 15m

Blood tests were originally envisaged as a way of helping to diagnose diseases. Since their inception, the number of ailments tested for has risen dramatically, along with the volume of ‘routine’ tests we’re exposed to.The latter are typically carried out when there is nothing actually wrong with the patient. While these may be slightly unpleasant, they’re viewed as a necessary evil because they’re only minimally invasive and can yield supposedly valuable information about our health.A phrase that’s often used to justify these blood tests is ‘better safe than sorry. However, while these may…