Disappointment is a part of life that comes up when hopes or expectations aren’t met. All of us feel disappointment at times in our relationships, in other people, and in ourselves. It’s not an easy feeling to sit with, but there are healthy (and unhealthy) ways to cope with this...

• Remember that the favor matters more than its scope. In most cases, the increase in rapport comes from the fact that the other person does you a favor.
• Use reciprocity, by performing a small favor shortly before asking for one.
• After asking for a favor, perfo...

Why do most animals consider sex fun only when the female can be fertilized?

• There’s a simple reason why most other animals are sensibly stingy about copulatory effort: sex is costly in energy, time, and risk of injury or death.
• Natural selection favors those individuals whose ...