This appears to be the age your partner is most likely to cheat on you
Do you ever worry that your partner has been playing away from home?
A survey conducted by website Illicit Encounters, which exists to help people cheat on their partners, found that the most dangerous age for being unfaithful is 39.
The questionnaire got over one-thousand responses. It also found that the key reason for cheating was dissatisfaction in the bedroom, with 76% of all respondents listing this as a reason for their "illicit" behaviour.
A strange trend emerged in website sign-ups, and the site pointed out that there were 18% more sign-ups from people whose ages end in the number 9.
They say 13 is unlucky for some, but if you're in a relationship you might want to be wary of the number nine...