Scientists at University of California Los Angeles have found out that some people are more inclined towards sex because they are wired to have more sex.
"Some people's brains are simply more sensitive to sexual cues than others - which means it takes less to get them aroused and ultimately leads them to find sexual partners," said Nicole Prause, an assistant research scientist in psychiatry at University of California Los Angeles.
Prause and her team recorded electroencephalogram (EEG) of brains of psychology students and viewed 225 standardised pictures of pleasant, neutral or unpleasant things.
Sexually stimulating pictures such as explicit love making scenes were pleasant images. The students also had to share details about number of sexual partners in the past year.
Some of the students exhibited strong reactions on the EEG to all intimate images. For them, it did not matter whether the scenes were explicit or not. These participants also shared about having more than one partner.
According to Prause, "This helps tell us why people may choose to pursue new sex partners, for example, some researchers have suggested that people may pursue new partners to experience sexual excitement that they did not experience in their regular lives or with their regular partner."
These results show that people have high sexual excitement in response to any potential partner, whether regular or new, she said.
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