They were joined on occasions by James Watt, the engineer who fine-tuned the steam engine, and Joseph Priestley, a burning radical who discovered oxygen.
Eliminating free radical production would involve completely redesigning aspects of our metabolism, especially the way we use oxygen to extract energy from food.
To solve the problem, doctors sometimes resort to the radical step of using lasers to kill retina cells responsible for peripheral vision in order to preserve enough oxygen for those engaged in central vision.