Firefighters take part in the bodybuilding event during a firefighting skills contest at the National Fire Service Academy in Gongju, South Korea on June 13, 2023. (Phoot by Yonhap/EPA)

A stray cat is checked on the eve of International Cat Day in Banda Aceh on August 7, 2023. (Photo by Chaideer Mahyuddin/AFP Photo)

People take part in a water gun battle as part of the annual Songkran festival, also known as water festival, the traditional Thai New Year celebrations, at the tourist spot of Khao San Road in Bangkok, Thailand, 13 April 2023. Thailand celebrates its first water-splashing Songkran festival following a three-year pause due to the COVID-19 pandemic. Songkran is celebrated with splashing water and putting powder on each other's faces as a symbolic sign of cleansing and washing away the sins from the old year. (Photo by Rungroj Yongrit/EPA)

Women wear the traditional costume of the Alto Tio Diego carnival during the Women's Afro-Mestizo Carnival of Alto Tio Diego on February 11, 2024 in Veracruz, Mexico. Alto Tio Diego is a small town near the State capital Xalapa where every year inhabitants celebrate their traditional carnival. Women of the town demanded a special day for them to parade and few years ago, they started to do it by walking through the streets wearing traditional costumes and masks (mostly of animals) but the attires have evolved to more modern characters. (Photo by Hector AD Quintanar/Getty Images)

South Korean youths play Pokemon Go on July 15, 2016 in Sokcho, South Korea. South Korea is not one of the initial Pokemon Go released countries, nor is the game likely to be released officially any time soon as the South Korean government does not allow Google to use its map; however, South Korean game enthusiasts are now visiting a handful of loophole areas in the north eastern side of the country near the border of North Korea to join the global frenzy of Pokemon Go. (Photo by Jean Chung/Getty Images)

A man carrying a sailfish walks through Hamarweyne district in South Mogadishu on March 25, 2015. (Photo by Carl De Souza/AFP Photo)

A woman paints the floor of a pond as her child pulls at her saree in Delhi, India November 23, 2016. (Photo by Cathal McNaughton/Reuters)

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)