And intravenous drug use, prostitution, premarital sex, and histories of multiple sex partners are all on the rise in China.
Women who got along with their companion's parents were less likely than men to have multiple sex partners.
In Ethiopia, many soldiers contracted H.I.V. during the civil war in the 1980's by having contact with multiple sex partners.
The survey also found that among the group with multiple sex partners, 60percentt do not use condoms all the time.
Or it may have developed as simply a byproduct of other adaptive traits, for example, a greater desire to engage multiple sex partners.
"I'm a little uncomfortable, because it's giving the wrong message — that you can have multiple sex partners without condoms — but I can't say it doesn't work".
Having multiple sex partners was a significant predictor of ED visits (El-Bassel et al. 2007).
Annual screening is recommended for women with new or multiple sex partners.
In some relationships, sterility can lead to multiple sex partners or artificial insemination.
4. Women who binge drink are more likely to have unprotected sex and multiple sex partners.
Its findings contrast with "established" fact -- that women who have multiple sex partners prior to marriage necessarily experience an increased likelihood that they will eventually divorce.
