A deer canters past participants in the Darkness into Light event in Killarney, Co Kerry, Ireland on May 7th, 2022. The annual pre-dawn walk raises funds for Pieta, a charity that supports people who are in suicidal distress or engage in self-harm, as well as families affected by suicide. All counselling sessions and other services are provided free of charge. (Photo by James Crombie/INPHO)

Medical workers wearing protective gear to protect against coronavirus infection, carry a patient at infectious diseases hospital where patients with coronavirus are treated in St.Petersburg, Russia, Wednesday, June 3, 2020. (Photo by Dmitri Lovetsky/AP Photo)

Japanese craftsman Sumikazu Nakata writes the Chinese character of “victory”, which is a part of the phrase “Certain victory”, as he adds the final touches on a Daruma doll, which is believed to bring good luck, at his studio “Daimonya” in Takasaki, northwest of Tokyo November 23, 2014. Daruma dolls, representing the Indian priest Bodhidharma, the founder of Zen Buddhism in China, is used to bring luck. It is also a favorite item of election candidates where they traditionally paint only one eye on the doll when they start their campaign and paint the other eye if they win in the election. (Photo by Yuya Shino/Reuters)

Nora Muaid stands in Zawraa Park on December 2, 2011 in Baghdad, Iraq. The park's 180-foot tall Ferris wheel opened earlier this year and is the second largest in the Middle East. (Photo by Mario Tama/Getty Images)

Police walk past a burning car during riots in Birmingham City Centre on August 8, 2011 in Birmingham, England. After three nights of rioting and looting in and around London, the chaos is starting to spread to other cities around Britain. (Photo by Jeff J Mitchell/Getty Images)

Women wearing flower and sprout-like hairpins walk past an advertisement board in Beijing, China, September 25, 2015. Wearing antenna styled hairpins in the shape of various flowers and plants at scenic spots has become a new trend in Beijing. (Photo by Kim Kyung-Hoon/Reuters)

A Thai man climbs down from his home in a disused airplane on September 12, 2015 in Bangkok, Thailand. 3 impoverished Thai families have begun living in disused airplanes on a private field. The families, who collect and recycle garbage earning a few dollars a day, can't afford to rent and prefer to stay in the planes. (Photo by Taylor Weidman/Getty Images)

Some are in it just for the money, others to help buy a meal. Then there are those who trade for fun or to spend time among friends. Millions of investors – pensioners, security guards, high-school students – dominate China's stock markets, conducting about 80 percent of all trades. Retirees gather in brokerage houses dotted around China also to enjoy some company and savour the air conditioning on hot days. Some start as young as 13, trading from home with an eye on future careers in finance. Winning isn't guaranteed. This year, among the most turbulent in China's financial history, its stock markets more than doubled in the six months to May, only to crash amid concerns that growth in the country, which makes everything from cars to steel, is slowing faster than previously thought. (Photo by Aly Song/Reuters)