Incorrect social media posts claiming that coughing really hard can help during a heart attack are circulating online again.
According to Full Fact, a team of independent fact checkers and campaigners, this is not recommended medical advice to treat a heart attack.
People who are alone and suspect they are having a heart attack should call 999 immediately, not cough repeatedly and very strongly.
Author's summary: Coughing won't save you from a heart attack if you're alone.