7 ways to tell if someone is cheating on you
First of all, there's a good chance you're right - it's perfectly normal to lie.
But if you're worried that someone's fibbing extends into the important stuff, like happiness or fidelity, you might have considered trying to catch them in a lie.
Unfortunately, science can't tell you if your partner is sleeping around, but it is getting better at spotting when someone - especially a significant other - is being deceptive.
Here are seven ways to tell if your partner might be keeping something important from you.