Rina Revah, 84, looks at photos of herself as a child taken before she was moved to Bergen-Belsen concentration camp, in Thessaloniki, Greece March 18, 2023. REUTERS/Alexandros Avramidis 

Rina Revah, 84, holds a photo of her mother and herself, taken before they were moved to Bergen-Belsen concentration camp, in Thessaloniki, Greece March 18, 2023. REUTERS/Alexandros Avramidis 

Employees package copper concentrate at a processing facility at Oyu Tolgoi copper mine in the Gobi Desert, Mongolia March 13, 2023. REUTERS/B. Rentsendorj 

Employees package copper concentrate at a processing facility at Oyu Tolgoi copper mine in the Gobi Desert, Mongolia March 13, 2023. REUTERS/B. Rentsendorj 

A view of a landfill contaminated with 5,000 tonnes of 50% concentration of arsenic, near a railway line, where international trains travel from Greece through North Macedonia, to other parts of Europe, near the border village of Tabanovce, North Macedonia March 9, 2023. REUTERS/Ognen Teofilovski 

An aerial view of a landfill contaminated with 5,000 tonnes of 50% concentration of arsenic, near a railway line, where international trains travel from Greece through North Macedonia, to other parts of Europe, near the border village of Tabanovce, North Macedonia March 9, 2023. REUTERS/Ognen Teofilovski 

Preparations are made at the concentration area for the samba schools before they perform during the second night of the Carnival parade at Anhembi Sambadrome in Sao Paulo, Brazil February 18, 2023. REUTERS/Carla Carniel 

Preparations are made at the concentration area for the samba schools before they perform during the second night of the Carnival parade at Anhembi Sambadrome in Sao Paulo, Brazil February 18, 2023. REUTERS/Carla Carniel 

Preparations are made at the concentration area for the samba schools before they perform during the second night of the Carnival parade at Anhembi Sambadrome in Sao Paulo, Brazil February 18, 2023. REUTERS/Carla Carniel 

A person takes photos of a carnival float as preparations are made at the concentration area for the samba schools before they perform during the second night of the Carnival parade at Anhembi Sambadrome in Sao Paulo, Brazil February 18, 2023. REUTERS/Carla Carniel 

Ganna Muromtseva, 29, a professional ballerina from Ukraine who fled her country after Russia's invasion, concentrates during a dance class for the Swan Lake ballet at the Hungarian State Opera in Budapest, Hungary, February 9, 2023. Muromtseva left Ukraine with just a bag when she was at the peak of her career at the National Opera of Ukraine, and after a year of trying to survive from one day to another and rebuilding herself as a dancer physically and mentally, she is now back at the top with the role of the White Swan and the Black Swan, which she had danced for more than five years as part of her Ukraine company in Kyiv, China and Tokyo before. "I'm happy to make a story on stage again," she said. "It is a totally different production (in Budapest), for me it feels like I really have to prove ... You have to be...very flexible in your head, not (just) in your body." REUTERS/Marton Monus SEARCH "MONUS BALLERINA" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

High school students are pictured during recess, before continuing their class sitting on a bike desk, as part of a program to improve physical health and increase concentration during classes, in San Nicolas de los Garza, Mexico January 30, 2023. REUTERS/Daniel Becerril 

High school students pedal on a bike desk, as part of a program to improve physical health and increase concentration during classes, in San Nicolas de los Garza, Mexico January 30, 2023. REUTERS/Daniel Becerril 

A high school student pedals on a bike desk, as part of a program to improve physical health and increase concentration during classes, in San Nicolas de los Garza, Mexico January 30, 2023. REUTERS/Daniel Becerril 

High school students pedal on a bike desk, as part of a program to improve physical health and increase concentration during classes, in San Nicolas de los Garza, Mexico January 30, 2023. REUTERS/Daniel Becerril 

High school students are pictured during recess, before continuing their class sitting on a bike desk, as part of a program to improve physical health and increase concentration during classes, in San Nicolas de los Garza, Mexico January 30, 2023. REUTERS/Daniel Becerril 

High school students are pictured in a classroom with bike desks, as part of a program to improve physical health and increase concentration during classes, in San Nicolas de los Garza, Mexico January 30, 2023. REUTERS/Daniel Becerril 

A student takes a book out of her locker, before takes a class sitting on a bike desk, as part of a program to improve physical health and increase concentration during classes, in San Nicolas de los Garza, Mexico January 30, 2023. REUTERS/Daniel Becerril 

High school students pedal on a bike desk, as part of a program to improve physical health and increase concentration during classes, in San Nicolas de los Garza, Mexico January 30, 2023. REUTERS/Daniel Becerril 

Rozette Kats, 80-year-old Holocaust survivor whose parents were murdered in the Auschwitz Nazi concentration camp, speaks during a memorial ceremony commemorating the victims of the Holocaust on the International Holocaust Remembrance Day, at the lower house of the parliament or Bundestag, in Berlin, Germany, January 27, 2023. REUTERS/Michele Tantussi 

Rozette Kats, 80-year-old Holocaust survivor whose parents were murdered in the Auschwitz Nazi concentration camp, attends a memorial ceremony commemorating the victims of the Holocaust on the International Holocaust Remembrance Day, at the lower house of the parliament or Bundestag, in Berlin, Germany, January 27, 2023. REUTERS/Michele Tantussi 

Rozette Kats, 80-year-old Holocaust survivor whose parents were murdered in the Auschwitz Nazi concentration camp, attends a memorial ceremony commemorating the victims of the Holocaust on the International Holocaust Remembrance Day, at the lower house of the parliament or Bundestag, in Berlin, Germany, January 27, 2023. REUTERS/Michele Tantussi 

Rozette Kats, 80-year-old Holocaust survivor whose parents were murdered in the Auschwitz Nazi concentration camp, speaks during a memorial ceremony commemorating the victims of the Holocaust on the International Holocaust Remembrance Day, at the lower house of the parliament or Bundestag, in Berlin, Germany, January 27, 2023. REUTERS/Michele Tantussi 

Rozette Kats, 80-year-old Holocaust survivor whose parents were murdered in the Auschwitz Nazi concentration camp, speaks during a memorial ceremony commemorating the victims of the Holocaust on the International Holocaust Remembrance Day, at the lower house of the parliament or Bundestag, in Berlin, Germany, January 27, 2023. REUTERS/Michele Tantussi 

Deputy Chief of Mission at the U.S. Embassy in Russia Elizabeth Rood lays flowers at the monument to resistance heroes at Nazi concentration camps and ghettoes during a ceremony marking International Holocaust Remembrance Day at the Jewish Museum and Tolerance Centre in Moscow, Russia, January 27, 2023. REUTERS/Evgenia Novozhenina 

Rozette Kats, 80-year-old Holocaust survivor whose parents were murdered in the Auschwitz Nazi concentration camp, attends a memorial ceremony commemorating the victims of the Holocaust on the International Holocaust Remembrance Day, at the lower house of the parliament or Bundestag, in Berlin, Germany, January 27, 2023. REUTERS/Michele Tantussi 

Rozette Kats, 80-year-old Holocaust survivor whose parents were murdered in the Auschwitz Nazi concentration camp, speaks during a memorial ceremony commemorating the victims of the Holocaust on the International Holocaust Remembrance Day, at the lower house of the parliament or Bundestag, in Berlin, Germany, January 27, 2023. REUTERS/Michele Tantussi 

Polish Ambassador to Russia Krzysztof Krajewski lays flowers at the monument to resistance heroes at Nazi concentration camps and ghettoes during a ceremony marking International Holocaust Remembrance Day at the Jewish Museum and Tolerance Centre in Moscow, Russia, January 27, 2023. REUTERS/Evgenia Novozhenina 

Rozette Kats, 80-year-old Holocaust survivor whose parents were murdered in the Auschwitz Nazi concentration camp, speaks during a memorial ceremony commemorating the victims of the Holocaust on the International Holocaust Remembrance Day, at the lower house of the parliament or Bundestag, in Berlin, Germany, January 27, 2023. REUTERS/Michele Tantussi 

Rozette Kats, 80-year-old Holocaust survivor whose parents were murdered in the Auschwitz Nazi concentration camp, speaks during a memorial ceremony commemorating the victims of the Holocaust on the International Holocaust Remembrance Day, at the lower house of the parliament or Bundestag, in Berlin, Germany, January 27, 2023. REUTERS/Michele Tantussi 

Russian businessman Viktor Vekselberg stands near the monument to resistance heroes at Nazi concentration camps and ghettoes during a ceremony marking International Holocaust Remembrance Day at the Jewish Museum and Tolerance Centre in Moscow, Russia, January 27, 2023. REUTERS/Evgenia Novozhenina 

Rozette Kats, 80-year-old Holocaust survivor whose parents were murdered in the Auschwitz Nazi concentration camp, speaks during a memorial ceremony commemorating the victims of the Holocaust on the International Holocaust Remembrance Day, at the lower house of the parliament or Bundestag, in Berlin, Germany, January 27, 2023. REUTERS/Michele Tantussi 

Officials, including Israeli Ambassador to Russia Alexander Ben Zvi, lay flowers at the monument to resistance heroes at Nazi concentration camps and ghettoes during a ceremony marking International Holocaust Remembrance Day at the Jewish Museum and Tolerance Centre in Moscow, Russia, January 27, 2023. REUTERS/Evgenia Novozhenina 

Polish Ambassador to Russia Krzysztof Krajewski lays flowers at the monument to resistance heroes at Nazi concentration camps and ghettoes during a ceremony marking International Holocaust Remembrance Day at the Jewish Museum and Tolerance Centre in Moscow, Russia, January 27, 2023. REUTERS/Evgenia Novozhenina 

German Ambassador to Russia Geza Andreas von Geyr stands near the monument to resistance heroes at Nazi concentration camps and ghettoes during a ceremony marking International Holocaust Remembrance Day at the Jewish Museum and Tolerance Centre in Moscow, Russia, January 27, 2023. REUTERS/Evgenia Novozhenina 

Chief Rabbi of Russia Berel Lazar and head of the Federation of Jewish Communities of Russia Alexander Boroda lay flowers at the monument to resistance heroes at Nazi concentration camps and ghettoes during a ceremony marking International Holocaust Remembrance Day at the Jewish Museum and Tolerance Centre in Moscow, Russia, January 27, 2023. REUTERS/Evgenia Novozhenina 

Chief Rabbi of Russia Berel Lazar and head of the Federation of Jewish Communities of Russia Alexander Boroda lay flowers at the monument to resistance heroes at Nazi concentration camps and ghettoes during a ceremony marking International Holocaust Remembrance Day at the Jewish Museum and Tolerance Centre in Moscow, Russia, January 27, 2023. REUTERS/Evgenia Novozhenina 

Russian Human Rights Commissioner Tatyana Moskalkova lays flowers at the monument to resistance heroes at Nazi concentration camps and ghettoes during a ceremony marking International Holocaust Remembrance Day at the Jewish Museum and Tolerance Centre in Moscow, Russia, January 27, 2023. REUTERS/Evgenia Novozhenina 

Russian Human Rights Commissioner Tatyana Moskalkova lays flowers at the monument to resistance heroes at Nazi concentration camps and ghettoes during a ceremony marking International Holocaust Remembrance Day at the Jewish Museum and Tolerance Centre in Moscow, Russia, January 27, 2023. REUTERS/Evgenia Novozhenina 

A participant stands near the monument to resistance heroes at Nazi concentration camps and ghettoes during a ceremony marking International Holocaust Remembrance Day at the Jewish Museum and Tolerance Centre in Moscow, Russia, January 27, 2023. REUTERS/Evgenia Novozhenina 

Archive cabinets containing documents from Auschwitz, Bergen-Belsen and other Nazi concentration camps are pictured at Germany's main agency responsible for the investigation of war crimes during Nazi rule at the Central Office of State Judicial Authorities for the Investigation of National Socialist Crimes in Ludwigsburg, Germany, January 25, 2023. REUTERS/Timm Reichert 

File cabinets containing documents from Auschwitz, Bergen-Belsen and other Nazi concentration camps are pictured at Germany's main agency responsible for the investigation of war crimes during Nazi rule at the Central Office of State Judicial Authorities for the Investigation of National Socialist Crimes in Ludwigsburg, Germany, January 25, 2023. REUTERS/Timm Reichert 

A group participates in a virtual guided tour of the former Nazi German concentration camp Auschwitz-Birkenau and Polish Jewry before the Holocaust by using Virtual Reality headsets as part of an initiative named Triumph of the Spirit, that was developed by ultra-Orthodox women, in Jerusalem, January 23, 2023. REUTERS/Ammar Awad 

A man participates in a virtual guided tour of the former Nazi German concentration camp Auschwitz-Birkenau and Polish Jewry before the Holocaust by using Virtual Reality headsets as part of an initiative named Triumph of the Spirit, that was developed by ultra-Orthodox women, in Jerusalem, January 23, 2023. REUTERS/Ammar Awad 

A group participates in a virtual guided tour of the former Nazi German concentration camp Auschwitz-Birkenau and Polish Jewry before the Holocaust by using Virtual Reality headsets as part of an initiative named Triumph of the Spirit, that was developed by ultra-Orthodox women, in Jerusalem, January 23, 2023. REUTERS/Ammar Awad 

Holocaust survivor Menachem Haberman, 95, participates in a virtual guided tour of the former Nazi German concentration camp Auschwitz-Birkenau, where he was deported to in May, 1944, by using Virtual Reality headsets as part of an initiative named Triumph of the Spirit, that was developed by ultra-Orthodox women, in Jerusalem, January 23, 2023. REUTERS/Ammar Awad 

An employee performs maintenance on a bike desk, as part of a program to improve physical health and increase concentration during classes, in San Nicolas de los Garza, Mexico January 18, 2023. REUTERS/Daniel Becerril 

A female high school student drinks water as she pedals on a bike desk, as part of a program to improve physical health and increase concentration during classes, in San Nicolas de los Garza, Mexico January 18, 2023. REUTERS/Daniel Becerril 

A high school student pedals on a bike desk, as part of a program to improve physical health and increase concentration during classes, in San Nicolas de los Garza, Mexico January 18, 2023. REUTERS/Daniel Becerril 

High school students pedal on a bike desk, as part of a program to improve physical health and increase concentration during classes, in San Nicolas de los Garza, Mexico January 18, 2023. REUTERS/Daniel Becerril 

A high school student pedals on a bike desk, as part of a program to improve physical health and increase concentration during classes, in San Nicolas de los Garza, Mexico January 18, 2023. REUTERS/Daniel Becerril 

High school students pedal on a bike desk, as part of a program to improve physical health and increase concentration during classes, in San Nicolas de los Garza, Mexico January 18, 2023. REUTERS/Daniel Becerril 

High school students pedal on a bike desk, as part of a program to improve physical health and increase concentration during classes, in San Nicolas de los Garza, Mexico January 18, 2023. REUTERS/Daniel Becerril 

High school students pedal on a bike desk, as part of a program to improve physical health and increase concentration during classes, in San Nicolas de los Garza, Mexico January 18, 2023. REUTERS/Daniel Becerril 

High school students pedal on a bike desk, as part of a program to improve physical health and increase concentration during classes, in San Nicolas de los Garza, Mexico January 18, 2023. REUTERS/Daniel Becerril 

High school students are pictured in a classroom with bike desks, as part of a program to improve physical health and increase concentration during classes, in San Nicolas de los Garza, Mexico January 18, 2023. REUTERS/Daniel Becerril 

A group participates in a virtual guided tour of the former Nazi German concentration camp Auschwitz-Birkenau and Polish Jewry before the Holocaust by using Virtual Reality headsets as part of an initiative named Triumph of the Spirit, that was developed by ultra-Orthodox women, in Jerusalem, January 16, 2023. REUTERS/Ronen Zvulun 

A man participates in a virtual guided tour of the former Nazi German concentration camp Auschwitz-Birkenau and Polish Jewry before the Holocaust by using Virtual Reality headsets as part of an initiative named Triumph of the Spirit, that was developed by ultra-Orthodox women, in Jerusalem, January 16, 2023. REUTERS/Ronen Zvulun 

Miriam Cohen, the creative director and co-founder of Triumph of the Spirit, gestures to a participant as he participates in a virtual guided tour of the former Nazi German concentration camp Auschwitz-Birkenau and Polish Jewry before the Holocaust by using Virtual Reality headsets as part of an initiative developed by Cohen and other ultra-Orthodox women, in Jerusalem, January 16, 2023. REUTERS/Ronen Zvulun 

A group receive a virtual guided tour of the former Nazi German concentration camp Auschwitz-Birkenau and Polish Jewry before the Holocaust by using Virtual Reality headsets as part of an initiative named Triumph of the Spirit, that was developed by ultra-Orthodox women, in Jerusalem, January 16, 2023. REUTERS/Ronen Zvulun