Experts believe the use of sex surrogates in sex education began in the 1960s when Masters and Johnson used sex surrogates in their research into body function during arousal.

The success rate of treating sexual problems with sexual counseling and surrogacy is believed to be near 90 percent.

There used to be about 200 surrogates in the U.S. Now there are about 50. This decrease occurred in the mid-1980s with the increase in AIDS incidences.

Early numbers suggested most objectum-sexual people were women. However, more recent numbers reveal a growing number of men are relating to being objectum-sexual.

Almost one-third of women between ages 40 and 69 are dating younger men (defined as 10 or more years younger).

According to recent research, age-gap couples with an age difference of 10 years or more perceive substantially more social disapproval about their relationship than do couples with no age gap or a minimal age gap.

Most women live an average of 7.7 years longer than their husband and typically marry men who are about four years older. By age 65, about 50 percent of married women are widowed.