No one understands the precise reason for the increase, though experts suspect it's linked to changes in sexual practices that emerged in the 1960s and '70s. For example, oral sex is a known risk factor for HPV-related throat cancers, and studies have shown that people who have come of age since the 1950s are more likely to have engaged in oral sex than those who were born earlier.
What? I am going to have a hard time believing that humans rarely engaged in oral sex prior to the 1960's.
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What? I am going to have a hard time believing that humans rarely engaged in oral sex prior to the 1960's.
Read more.
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