Blood is everywhere—on the walls, the body draining table—as you walk through the gore floor of the Haunted Schoolhouse and Haunted Laboratory in Akron, Ohio.

Shrieks of more than three million sensation seekers have filled the rooms of the Haunted Schoolhouse and Haunted Laboratory in its 41 years of operation, said spokesman Ryan Haidet.

Although Haidet said his staff doesn’t use scientific research to plan out their scenes, that does not mean there is not some science behind how people react to them.

Listen as Lyndsey Schley describes why people, as sensation seekers, are on the hunt for these frights and delights.

Contact Lyndsey Schley at [email protected].