Yang Juan, an employee at Goopal Group, takes a nap in her seat after lunch, in Beijing, China, April 21, 2016. Office workers sleeping on the job is a common sight in China, where a surplus of cheap labour can lead to downtime at work. But in China's technology sector, where business is growing faster than many start-up firms can hire new staff, workers burn the midnight oil to meet deadlines and compete with their rivals. Some companies provide sleeping areas and beds for workers to rest during late nights. (Photo by Jason Lee/Reuters)

Two brave contestants take part in the World Gravy Wrestling Championships at the Rose 'n Bowl in Stacksteads, Lancashire, England on August 27 2018. Contestants must wrestle in the gravy for 2 minutes, points are scored for fancy dress, comedy effect, entertainment and wrestling ability. The event is held to raise funds for the East Lancashire Hospice and competitors nominated charities. (Photo by The Mercury Press)

A policeman wields his baton at an autorickshaw rider as punishment for breaking the lockdown rules, after India ordered a 21-day nationwide lockdown to limit the spreading of coronavirus disease (COVID-19) in Mumbai, India on March 25, 2020. (Photo by Francis Mascarenhas/Reuters)

Festival goers participate in a dance class on embracing kinetic intimacy in the dance shala a the Oregon Eclipse Festival, August 20, 2017, at Big Summit Prairie ranch in Oregon' s Ochoco National Forest near the city of Mitchell ahead of the total solar eclipse on August 21, 2017. (Photo by Robyn Beck/AFP Photo)

A nurse holds a painting of Prime Minister Boris Johnson clapping with blood on his hands as part of a demonstration of NHS workers at hospitals across London to demand a 15 per cent pay rise by the government in London, Wednesday, August 26, 2020.(Photo by Kirsty Wigglesworth/AP Photo)

A picture of Moon Ji-sung, a high school student who died in the Sewol ferry disaster, hangs in her room in Ansan April 7, 2015. Her dream was to be a flight attendant. Nearly a year after the Sewol ferry sank on April 16, 2014, with the death of 250 students, some families keep their children’s bedrooms intact to remember and honour their loved ones. More than 300 people, most of them students and teachers from Danwon High School, are dead, or missing and presumed dead, after the Sewol ferry sank on a routine trip from the port of Incheon, near Seoul, to the holiday island of Jeju. (Photo by Kim Hong-Ji/Reuters)

South Korean residents 89-year-old Jeong Nam-poong and 80-year-old Jang Yoon-hui , wearing protective masks, dance at park after their daytime discotheque “colatec” has been closed amid the coronavirus disease (COVID-19) outbreak in Seoul, South Korea, May 19, 2020. (Photo by Minwoo Park/Reuters)

After a long time renovation project, the old town in Taiyuan city which was founded in 1357, finally lights up and opens to public in Taiyuan City, north China's Shanxi Province, 23 November 2020. (Photo by Rex Features/Shutterstock)