A woman tries to take selfie photos in front of a photo spot featuring Christmas season scene and masks at Tokyo Mask Land, a face-mask theme exhibition and its speciality shop, amid the coronavirus disease (COVID-19) outbreak, in Yokohama, Japan on December 1, 2020. (Photo by Issei Kato/Reuters)

Military vehicles surround a wreckage of a trolleybus, in Volgograd, Russia, Monday, December 30, 2013. A bomb blast tore through a trolleybus in the city of Volgograd on Monday morning, killing at least 10 people a day after a suicide bombing that killed at least 17 at the city's main railway station. Volgograd is about 650 kilometers (400 miles) northeast of Sochi, where the Olympics are to be held. (Photo by Denis Tyrin/AP Photo)

A pupil of the Dao ethnic tribe returns home from school along a hillside path at Suoi Thau village in Hoang Su Phi district of Vietnam's northern province of Ha Giang, located at the border with China, September 18, 2015. (Photo by Reuters/Kham)

A man transports a car on a horse cart to a repair shop along a street in Amritsar on May 6, 2021. (Photo by Narinder Nanu/AFP Photo)

Attendees look on at the event held by Kamala Harris during Election Night, at Howard University in Washington on November 6, 2024. (Photo by Mike Blake/Reuters)

American media personality and socialite Kylie Jenner in the second decade of December 2024 cuddles up to mom Kris in a sweet pic. (Photo by kyliejenner/Instagram)

DJ Drama (R) arrives at America's Got Talent is seen on March 28, 2025 in Pasadena, California. (Photo by Hollywood To You/Star Max/GC Images)

Skeleton involves a person riding a small sled down a frozen track while lying face down. The sport is a more intense form of luge because skeleton competitors leap onto the sled and slide downhill head first. Skeleton athletes can reach up to 80 mph on straightaways, causing forces up to 5g, so the helmet is a critical component for attitude as well as safety.