The real question isn’t whether you are being lied to, but why ‘tall tales’ land so heavily with you

When I was 21, I went on a girls’ trip with university friends. Over dinner, one of the girls, who was known for being a liar, announced she had just heard from her doctor that she had cancer and needed chemotherapy. She never had chemotherapy and most of the group (especially me) stopped socialising with her after that. Five years later, she admitted she had been lying.

Recently, a new person joined my work and I think she may be a liar of similar proportions. We get along very well, are a similar age and are both chatty. She is also an over-sharer. According to her, this has been the worst six months of her life, involving injuries, escapades and traumatic events, some of which feel untrue. I feel I have to believe her or I’ll be the worst person ever. Yet, my instincts and life experience tell me these things are probably fiction or at least heavily exaggerated.