Laumann's First Proposition
Moderation in levels of partnered sex activity is the mode for the bulk of humankind and is consistent with high levels of subjective well-being.
Laumann's Second Proposition
Low levels of subjective sexual well-being is associated with poor physical, emotional, and mental health.
These propositions (they are empirical associations and not established as causal) are based on my extensive international work on human sexuality. They are based on surveys I have conducted in the United States and China as well as the Pfizer-funded Global Survey of Sexual Attitudes and Behavior (N = 27,500) which interviewed equal numbers of men and women 40 to 80 years old in 29 countries world wide. The real question is the nature of the causal link between these variables.