Sarah Brownsword, the educator behind the question, put the debate down to the fact that "people love to talk about and argue ...

Test yourself against the Grammar Gameshow, or watch Dan and Sian's Masterclass to learn advanced grammar.

responds to another person’s statement by modeling standard English grammar, as demonstrated in this conversation: A boy comes running inside a house. “I did good on my math test!” ...

In this experiment, researchers found that HRV became more regulated among test subjects when they heard grammatical mistakes. Simply put—bad grammar made them feel physically stressed.