A survey on Money, Sex & Happiness (31)  conducted on 16,000 Americans  has some interesting findings:

- Sexual activity ranked very high on happiness inducing factors in a person's SWB (32)
- the more sex, the happier the person, though this applies more to men than women. In money terms, increasing the frequency of
  sex from once a month to once a week provides as much happiness as a US$50,000-a-year raise
- Sex brings more happiness to the rich than the poor
- The number of sexual partners leading to a maximum level of happiness is ONE, not several
- Men who paid for sex are considerably less happy than other people
- Those who have ever had sex outside their marriage also report markedly lower happiness scores
- Married people have  upto 30% more sex than those with other kinds of marital status, and scored higher levels of happiness
- There is no connection between income and frequency of sex. Also, money buys more sexual partners but not more sex.
- Unemployed people, those whose parents divorced and divorced men tend to have a greater number of sexual partners than the
  control population 

31. David G. Blanchflower, Dartmouth College, U.S.A. & Andrew J. Oswald, Warwick University, U.K. - 2003
32. Kahneman et al - 2003

THE SPIRITUAL-SEXUAL UNION

The modern mantra is easy-going sex in huge quantities as some sort of "feel-good" opiate. This can be replaced by first removing the "dirt" and "conquest" out of lovemaking, and seeing the other as a manifestation of divinity - a channel for directly experiencing the authentic spiritual life. The moment of orgasm (albiet fleeting) is perhaps the only easily accessible way of reaching "non-thinking and non -duality ." 

The notion of sexuality most of us hold is focused on intercourse with orgasm as the goal. However by way of integrating sexuality and spirituality, tantric yoga deals with the union of opposites, heaven and earth, yin and yang, male and female.