Millions risk long-term damage to their hair by making 11 simple mistakes. (Canva) Millions of Brits are making simple mistakes with everyday activities that are causing damage to their hair, according to experts. A poor diet, wearing a hat and even spending too long in the sun can damage your locks. People are being warned that even touching your hair too much can cause damage as it creates grease which can impact your locks. It comes after a study, commissioned by hair supplement Vitabiotics Perfectil, found just 14 percent of women are confident they know what is good and bad for t...