Palestinian barber Ramadan Odwan styles and straightens the hair of a customer with fire at his salon in Rafah, in the southern Gaza Strip February 2, 2017. In Ramadan Odwan's barbershop in Gaza, hair isn't just blow-dried, it's blowtorch-dried. “People have gone crazy about it, many people are curious to go through the experience and they are not afraid”, he told Reuters. “People here love adventures”. (Photo by Ibraheem Abu Mustafa/Reuters)

In this photo illustration a package of Nicotine Gum, which is advertised as helping people stop smoking cigarettes, is seen on January 10, 2012 in Miami, Florida. A study published in the journal Tobacco Control on Monday, reported that the nicotine alternatives, like Nicotine Gum, have no lasting effect on people trying to quit their smoking habit. (Photo illustration by Joe Raedle/Getty Images)

The cruise ship Costa Concordia lies stricken off the shore of the island of Giglio, on January 14, 2012 in Giglio Porto, Italy. More than four thousand people were on board when the ship hit a sandbank. At least 3 people have been confirmed dead and another 50 are unaccounted for. (Photo by Laura Lezza/Getty Images)

The cruise ship Costa Concordia lies stricken off the shore of the island of Giglio, on January 17, 2012 in Giglio Porto, Italy. More than four thousand people were on board when the ship hit a rock off the Tuscan coast. At least 11 people have been confirmed dead and another 24 missing. (Photo by Laura Lezza/Getty Images)

People gather as a crowd of sea lions lay on floating docks at Pier 39 in San Francisco, California May 4, 2015. Hundreds of sea lions began hauling out on the docks following the Loma Prieta earthquake of 1989, and face no natural predators at the pier. (Photo by Robert Galbraith/Reuters)

People carry the body of a man they uncovered from under the rubble of houses destroyed by Saudi airstrikes in the old city of Sanaa, Yemen, Friday, June 12, 2015. (AP Photo/Hani Mohammed)

Krista Long began snapping pics of people sliding down a water slide after many visits to the local water park with her tween daughters. The result is an action-packed series that show emotions ranging, she says, “from pure joy to fear, in anticipation of the inevitable splash-down!” (Photo by Krista Long)

“Shortly after he arrived, Van Agtmael witnessed the aftermath of this suicide bombing at a cafe that soldiers frequented in Mosul. Nine people died and 23 were wounded”. (Photo and caption by Van Agtmael/Harrison Jacobs/Magnum Photos)