The Buzz Log What’s hot on Yahoo! Buzz™ (and why)...

It's often said that wisdom comes from age and experience. In certain cases (Britney, anyone?), the adage doesn't seem to ring true. But as adults, we can look back and admit that our parents were probably right when they refused to let us join the circus.

In the presidential primary circus, age is an inevitable issue—especially when one candidate for president is a generation older than another. Swipes have been taken at John McCain because of his age, and searchers have dialed up "how old is john mccain," "john mccain age," and "mccain age" in increasing numbers this week. (He happens to be 72 years old.) A solid 45% of those lookups have come from folks aged 35-54.

The political curiosity doesn't stop there. People are also asking "how old is barack obama" (age: 46) and "how old is hillary clinton" (age: 60). We don't see many queries about Mitt Romney's age (age: 60), and Cindy McCain (age: 53) is the only spouse that pops into the top age searches.

Who else are searchers curious about? Take a gander at the top 20 "how old is" searches…