31.  As with so many things, you need to reach a certain age before you really get it.

32.  How old is a woman of a certain age?

33.  However, no spring chicken is acceptable, and of a certain age is preferred.

34.  I don't know why people are perceived as done at a certain age," she says.

35.  If the fantasy-makers say that women over a certain age are has-beens, real life women take it personally.

36.  --if they are of a certain age they benefit from Medicare and Medicaid;

37.  In a similar way, people of a certain age feel as if they missed the swinging '60s and '70s.

38.  In fact, the Turner network is making something of a fuss over explorers of a certain age.

39.  In Iceland, we have the opportunity of looking at every single individual who lived to a certain age.

40.  In many ways, a decade is not such a long time, especially for people of a certain age.