London - Sex addiction really does exist, scientists say, and it may be driven by having too much of a "cuddle" hormone.
Despite claims that one in ten men and one in 12 women are sex addicts – including stars like Michael Douglas and Tiger Woods – many refuse to believe it is a real condition.
But now researchers say they have found differences in the genetic make-up of addicts.
They think this increases levels of oxytocin, the so-called cuddle hormone, which is said to make people bond and stay together.Those with excess oxytocin may be attracted to many people at the same time, leading them to compulsively seek out sex. The hormone is also thought to make sex more rewarding.
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