Final answer:
The number of modern sex therapy sessions varies based on individual or couple needs, with no set number applicable to everyone. Sexual practices differ among groups, with factors like being married influencing frequency of sexual activities.
Step-by-step explanation:
The length of modern sex therapy sessions can vary depending on the specific issues being addressed and the therapeutic approach. However, there isn't a definitive number of sessions that applies universally. Therapy might be short-term, spanning several weeks, or extend over several months. It's important to tailor the number of sessions to the individuals' or couples' unique needs.
Discussing sexual attitudes and practices, it's noteworthy that sexual practices can differ among groups. For example, married couples reportedly have sex more frequently than singles, with 27 percent of married couples in their 30s having sex at least twice a week, which reflects the intricate interplay between relationship status and sexual activity.