Keeping the Spark Alive

Yes, there will come a time when your mate seems less and less exciting. For many couples, this marks the true beginning of their relationship.

Sex

At least for humans, this most basic of acts is anything but basic. As the pioneering sex researcher Alfred Kinsey put it, the only universal in human sexuality is variability itself. Within the universe of intimacy and pleasure that sex affords, however, there's a lot of room for error.

Marriage

Marriage is the process by which two people make their relationship public, official, and permanent. It is the joining of two people in a bond that putatively lasts until death, but in practice is increasingly cut short by divorce. Of course, over the course of a relationship that can last as many as seven or eight decades, a lot happens.

Happiness

Research on how to increase positive moods and capitalize on your strengths has proliferated in recent years, thanks to the positive psychology movement, and has shed light on ongoing insights into personality, mood, and cognition.