Part of an ongoing series

Zumba is a fitness craze; a high-energy dance and exercise program. You can find it in high-end gyms and even the community center in Hazelwood, Mo., where Casaundra Bronner, 40, lives.

With elections just months away, Venezuelan President Hugo Chávez said he will require surgery for a new lesion doctors found in the area where he had cancer surgery last year.

"It is a small lesion of about 2 centimeters [less than 1 inch] in diameter, very clearly visible," Chávez said on state TV, according to the AP.

The AP adds:

"The announcement throws new uncertainty over the country's politics because the socialist leader is seeking re-election this year, hoping to extend his more than 13 years in power.

This year is BART’s 40th birthday. While some people swear that 40 is the new 30, when it comes to subway systems, 40 is just plain over-the-hill. About two-thirds of BART cars have been running the rails since the system opened, in 1972.

Paul Oversier is in charge of operations at BART. He says that because BART trains run long distances and at higher speeds than other subway systems, it gives the system a dubious distinction. “We have the oldest cars, and we run them the hardest,” he says.

The Lunar Reconnaissance Orbiter is casting doubts on the belief that the Moon is a lifeless piece of rock.

As humans, we sometimes pay a price for drinking alcohol — in hangovers, or worse. But if you happen to be a young fruit fly, it turns out that alcohol can be just what the doctor ordered.

The pesky little fruit flies often show up when apples or bananas are left sitting around for too long on the kitchen counter. Most folks find them annoying, but Todd Schlenke can't get enough of them.

Saying that the Girl Scouts is a "radicalized organization" that promotes "homosexual lifestyles" and is aligned with honorary president Michelle Obama's "pro-abortion" viewpoint, an Indiana state legislator has told his fellow Republicans he can't support a proclamation honoring the organization's 100th anniversary.

Greece is looking more and more like one of those "troubled homeowners" we hear so much about.

It's underwater and struggling to cover debts worth far more than its gross domestic product. So nervous lenders are offering to write down some of those loans in hopes of sending Greece a lifeline and keeping Athens current on its payments.

In return, the country has agreed to put its balance sheet in order, a process that is going to be neither easy nor quick.

700 Occupy demonstrators gathered outside San Quentin State Prison this past weekend to draw attention to the need  for police reform. Demonstrators' demands included eliminating solitary confinement, a ban on the death penalty, and to get rid of California's "three strikes" law. Meanwhile, the prison itself was placed on lockdown...

International tension over Iran's disputed nuclear activities was ratcheted up today, when an Iranian general warned that his country would take pre-emptive action if its national interests were threatened.

Reuters reported Gen. Mohammed Hejazi made his comments in an interview with the semi-official Fars News Agency.

Thinking about getting a body piercing? Who hasn't, right?

Well, one thing to consider is that about 20 percent of the time there are complications from the procedure, such as infection or scarring, a fresh review of the medical literature finds.

Piercings of the bellybutton and upper ear are especially prone to problems.