The fascinating science of pain – and why everyone feels it differently

We can never know whether our six out of 10 on the pain scale is the same as the patient in the chair next to us. Illustration: Victoria Hart/Guardian design

Some say it was John Sattler’s own fault. The lead-up to the 1970 rugby league grand final had been tense; the team he led, the South Sydney Rabbitohs, had lost the 1969 final. Here was an opportunity for redemption. The Rabbitohs were not about to let glory slip through their fingers again.

Soon after the starting whistle, Sattler went in for a tackle. As he untangled – in a move not uncommon in the sport at the time – he gave the Manly Sea Eagles’ John Bucknall a clip on the ear.