Sabrina Sabrok, a self-styled psychic and medium who has recently set up a Satanic cult, appears to believe that her blood came from outside sources.
"I worked with researchers who told me that my blood type is not from this planet," the 43-year-old former Playboy model told the Daily Star. "There are even theories that aliens carried out experiments with humans, mixing DNA and things like this."
"As a result, some people are Rh-negative," she was quoted as saying.
Rh-negative blood refers to the type of red blood cells that do not have a protein called the Rhesus (Rh) factor on their surface. Nearly 85 percent of the world's population is estimated to have Rh-positive blood, while the rest are Rh-negative.
Rh-positive individuals can be given transfusions of both types of blood, but Rh-negative people should only get Rh-negative blood, because there's a chance that an incompatibility might happen otherwise.
Scientists believe that Rh-negative blood is the result of a mutation that happened during our evolution, but some conspiracy theorists suggest that Rh-negative individuals have evolved from aliens who mated with or experimented on humans when they came to our planet.