Definition: Anti-aging addresses how to prevent, slow, or reverse the effects of aging and help people live longer, healthier, happier lives. 

Basics of Anti-Aging
I did some research and found theat Anti-Aging is a huge topic. Anti-Aging is most commonly seen on the internet in the form of cosmetic Anti-Aging Cream Advertisements.  The anti-aging marketplace includes nutrition, physical fitness, skin care, hormone replacements, vitamins, supplements, and herbs. 

However, there are many other aspects of the Keyword, “Anti-Aging”. Anti-aging also includes anti-aging psychology, which include coping skills for resiliently handling change, stress, and aging. Yet Another part of Anti-aging is Life Extension.

Ideas
Since the Anti-aging Topic is so broad the Options are endless, here are some common Ideas…
Anti-Aging Product Review Site – This could also be a Forum, and could be more specific, such as an Anti-Aging Exfoliating Cream Review Site (or Another Product).
Anti-Aging Excersise Web Site - Exercises that help Prolong life Expectancy.

There are endless ideas using “Anti-aging” as the keyword. However, remember, as always, to keep very specific so that Your Site is unique. If you go into a Broad Topic Your Site will just be a fish in the Sea and it will take a lot of extra promotion to get Noticed.