Sid understood that the best thing for injuries of this kind was to minimise swelling by keeping the body cold. His early work consisted of laying patients on a block of fish ice to keep the body temperature as low as possible. He became a brain surgeon but, after being recruited into Formula One by Bernie Ecclestone, he contributed hugely to making cars safer through his research into how to absorb energy with headrest foams, nose, side and rear-impact structures, and so on.
