The waning moon sets behind leafless sumac trees on a crisp, clear morning, Thursday, December 15, 2016, in Portland, Maine. Much of the northern Mid-Atlantic and Northeast will stay cold for the next couple of days as the arctic air remains stuck over the northern Appalachians, the National Weather Service said. (Photo by Robert F. Bukaty/AP Photo)

Allison Callender and Kent Willis, members of Mekanix Gym, a total wellness center, take a cold plunge in ice after a workout at the gym's Shadow Sanctuary facility during hot weather in Houston, Texas, U.S., July 19, 2023. (Photo by Adrees Latif/Reuters)

A man stands on a jetty on the fog-shrouded Victoria Harbour Wanchai in Hong Kong, China, 22 March 2022. Fog is common in Hong Kong in spr​ingtime when the territory is affected by alternate cold and warm air. (Photo by Jerome Favre/EPA/EFE)

Participants bathe in ice-cold water during a ceremony at Teppozu Inari Shrine in Tokyo, Japan, 12 January 2025. 80 men and women took part in the ice water endurance ceremony to purify their souls and pray for good health in the new year. (Photo by Franck Robichon/EPA/EFE)

A view of the silhouettes of people, passing across a bridge over the frozen Lake Murat, trying to go on their daily lives despite the cold during winter season in Agri, Turkiye on February 10, 2025. (Photo by Abdullah Soylemez/Anadolu via Getty Images)

Sandy Bell stands with her golden doodle dog Ozzy looking out at the golden sunrise breaking through the tree on a cold and frosty morning at Bowden Loch near Melrose in the Scottish Borders, South Scotland on February 7, 2025. (Photo by Phil Wilkinson/The Times)

A policewoman uses her mobile phone as navy honor guards stand near of a World War Two memorial during celebrations to mark Victory Day in the Black Sea port of Odessa May 9, 2014. Ukraine celebrates the 1945 victory over Nazi Germany during World War Two on May 9. (Photo by Gleb Garanich/Reuters)

Servicewomen march in formation during a Victory Day military parade marking the 74th anniversary of the victory over Nazi Germany in the 1941-1945 Great Patriotic War, the Eastern Front of World War II, in Moscow's Red Square, Russia on May 9, 2019. (Photo by Valery Sharifulin/TASS)