When it comes to sex, length (of time) matters

A survey of sex therapists have concluded the optimal amount of time for sexual intercourse is 3 to 13 minutes.

The findings, to be published in the May issue of the Journal of Sexual Medicine, strike at the notion that endurance is the key to a great sex life.

However, the time does not count foreplay, and the therapists did rate sexual intercourse that lasts from 1 to 2 minutes as "too short".