Wikipedia Entry of the Day

Socioemotional Selectivity Theory

States that older adults become more selective about their social networks. Because they place a high value on emotional satisfaction, older adults often spend more time with familiar individuals with whom they have had rewarding relationships[1]. This selective narrowing of social interaction maximizes positive emotional experiences and minimizes emotional risks as individuals become older. According to this theory, older adults systematically hone their social networks so that available social patners satisfy their emotional needs.

Sounds like a good idea. Maybe I'll get a head start and start now.

How this came about - CNN reports happiness comes with age.

At age 87, he's found that as people get older, they tend to "mellow out" when it comes to arguments. Nowadays, devoting time each day to swimming and reading, Rose feels happier than he did in his 40s.

And this:

A Pew Research Center study found that the happiest men are ages 60 to 69, while the least happy are ages 20 to 29.

Fear not, young friends, time is on your side. Just stay alive and happiness will come!