This is going to make you fix your hair and take a hard look in the mirror EVERY SINGLE TIME you leave the house.

--According to a new study out of Ireland, our brains make INSTANT judgments of whether or not we're attracted to someone within MILLISECONDS of meeting them.

--And if, in that split second, your brain doesn't like what it sees, your odds of dating that person plummet . . . even if they've got a spectacular personality.

--The researchers used brain scans to monitor whether people were attracted to other people at a speed dating event.  Then, after a five-minute conversation, they asked the people if they'd be willing to date the person they just talked to.

--The result?  People were only interested in dating someone they weren't initially attracted to 37% of the time.  So if someone meets you and isn't automatically attracted to you, there's about a two-thirds chance they'll never date you.