Lungs are amazing. There they sit, inflating and deflating from dawn to dusk, dusk to dawn, sucking in air, stripping out oxygen and exchanging it for carbon dioxide. They do this 20,000 times a day, 7.5m times a year, 600m times in the average lifetime, keeping our trillions of cells ticking over and saving them from choking on their own exhaust fumes. And we ignore them until something goes wrong and we’re gasping, wheezing, panicking – or worse.
When I think about lungs, it’s often in the same breath as cancer, which killed my dad 39 years ago. He only realised his lungs were knackered after a heart attack, which was probably also down to smoking. Sixty Senior Service a day, cigarette number two often lit as soon as number one was stubbed out. He stopped overnight, but it was too late.
