To many people, Friday the 13th is a day that brings bad luck and misfortunate.

Although fear and superstition attached to the date has been ingrained in pop culture through movies and Hollywood, many people suffer from a real fear of the day, which is called paraskavedekatriaphobia. There is also a phobia called friggatriskaidekaphobia, which is the fear that when the 13th falls on a Friday mysterious forces are stirred up.

According to LiveScience.com, folklorists think the dread dates back to Biblical times, when the 13th guest at Jesus Christ's Last Supper, Judas, betrayed Jesus and caused his Crucifixion, which was held on a Friday.

Nevertheless, by the late Middle Ages both Friday and the number 13 were considered bearers of misfortune. As a result, the combination of Friday the 13th was deemed as unlucky.

Studies on Friday the 13th suggest that nothing bad happens on this date. However, a Finnish study discovered that female drivers were more likely to get in car accidents on the day. Later on, another study concluded that the correlation was irrelevant from better data and more controls. Likewise, a German study also found that the number of accidents that occur during hospital operations is relatively the same on Friday the 13th compared to other dates on the calendar.

There have been further studies that examined the idea that stock markets might perform more poorly on Friday the 13th, but because of investors' superstition, they found that the markets actually do somewhat better than on other days.

While there is no scientific proof or data that Friday the 13th is a cause bad luck, it does tend to cause people to behave differently out of fear or anxiety, thereby causing things like accidents to occur, which we in turn attribute to "bad luck," reports Vox.com.