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What do you think of when you hear the word fungi? Mushrooms? Athlete's foot? General mold?

The estimated annual health care costs related to obesity are over $210 billion, or nearly 21 percent of annual medical spending in the United States. Americans spend $60 billion on weight loss products each year, trying everything from expensive meal replacement products to do-it-yourself programs on the latest cell phone apps. We gather weight loss advice, voluntarily or involuntarily, from news outlets, social media and just about everyone.

Just days before the release of a report into the investigation into the fate of Malaysian Airlines Flight 17, Russia's defense ministry released radar data which, it alleges, shows that if the plane was shot down, it was done so by Ukrainian forces.

When archeologist Hiroyuki Miyagi heard that a bunch of ancient Roman and Ottoman coins had been unearthed from the ruins of an old castle in Okinawa, he initially thought it was a hoax.

As presidential candidates Donald Trump and Hillary Clinton traded barbs, viewers headed to the dictionary to look up headscratching words like "braggadocious."

So if you have a pen, and combine it with a pineapple, what do you have?

An unlikely stowaway on a Japanese bullet train forced the country's usually uber-punctual rail service to make an emergency stop Monday.

To the untrained eye it's a simple piece of jewelry -- but don't let its modesty fool you.

The best moments from the highly anticipated first debate between Hillary Clinton and Donald Trump.

Donald Trump told CNN's Dana Bash on Monday night that he's "happy that I was able to hold back on the indiscretions with respect to Bill Clinton."

During the first 2016 presidential debate, Donald Trump says that Hillary Clinton doesn't have the stamina to be president and has "bad experience."

During the first presidential debate, Donald Trump put out various theories as to who may have hacked the DNC.

Hillary Clinton attacks Donald Trump about not paying taxes in their first presidential debate.

Hillary Clinton attacks Donald Trump about not paying taxes in their first presidential debate.

Is NRA-backed Donald Trump going anti-gun? Only for "bad people."

During the first presidential debate, Donald Trump said Hillary Clinton "tells you how to fight ISIS on her website. I don't think Gen. Douglas MacArthur would like that too much."

A conflict that lasted over five decades. An estimated 220,000 people killed. Five million displaced.

During the first presidential debate, Hillary Clinton said Donald Trump thinks global warming was created by and for the Chinese in order to make U.S. manufacturing non-competitive.