A student takes part in an "antigravity" yoga class at the Om Factory in New York
A student takes part in an "antigravity" yoga class at the Om Factory in New York August 16, 2011. "Antigravity" yoga makes use of hammocks to help practitioners gain greater flexibility, allowing for a wider range of yoga poses, according to the workshop's website. REUTERS/Shannon Stapleton (UNITED STATES - Tags: SOCIETY HEALTH ODDLY SPORT IMAGES OF THE DAY)
Cross country skiers race over the frozen lake Sils during the Engadin Ski Marathon
Cross country skiers race over the frozen lake Sils during the Engadin Ski Marathon near Sils March 14, 2010. More than 10,400 skiers participated in the 42.2 km race between Maloja and S-chanf near the Swiss mountain resort of St. Moritz. REUTERS/Christian Hartmann (SWITZERLAND - Tags: SPORT SKIING SOCIETY IMAGES OF THE DAY)
The Wider Image: Getting to grips with sumo
A sand-covered loincloth, or mawashi, worn by a sumo wrestler is seen during a training session at Ganjoji Yakushido temple in Nagoya, Japan, July 5, 2017. The temple is used by sumo wrestlers belonging to the Tomozuna stable as a temporary base for the Nagoya Grand Sumo Tournament. REUTERS/Issei Kato SEARCH "KATO SUMO" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY.