You Know You're 40 When.. This item is unavailable.You Know You're 40 When.

Are you almost over the hill? Know someone who is?

Getting older is no fun, but it sure can be funny. How do you know when you're approaching the big 4-0?

Here are a few clues:

* Comb-overs are starting to make a certain kind of sense.
* A kid you once babysat for is now your lawyer.
* At your checkups, the doctor has begun to ask if you're still sexually active.
* Midnight seems awfully late.
* You're more interested in websites that will calculate your Body Mass Index than in Internet porn.
* You receive two phone calls in a single week from people who want to sell you life insurance.

Whether you've just found your first gray hair or you're peering around the corner to your mid-life crisis, You Know You're 40 When... will tickle your funny bone (while you can still remember where to find it).

ANN HODGMAN is the author of several humor books and more than forty books for children. A frequent contributor to many national magazines, she lives in Washington, Connecticut. The first female staffer on the Harvard Lampoon, PATRICIA MARX has been a staff writer for Saturday Night Live, created episodes for Nickelodeon, and written dozens of books and magazine articles. She lives in New York City. Hodgman and Marx have collaborated on several previous books, including 1003 Great Things About Getting Old, and they have each written for The New Yorker. Illustrator and cartoonist TAYLOR LEE lives in Larchmont, New York.