Chanel Okoth, daughter to Kenyan weightlifter Mercy Obiero, stretches before lifting weights during a training session at a gym within Umoja estate in Nairobi, Kenya September 15, 2020. Picture taken September 15, 2020. REUTERS/Monicah Mwangi

Kenyan weightlifter Mercy Obiero watches as her daughter Chanel Okoth and granddaughter Keysha Atiky stretch after a training session at a gym within Umoja estate in Nairobi, Kenya September 18, 2020. Picture taken September 18, 2020. REUTERS/Monicah Mwangi TPX IMAGES OF THE DAY

Chanel Okoth, daughter to Kenyan weightlifter Mercy Obiero, stretches before lifting weights during a training session at a gym within Umoja estate in Nairobi, Kenya September 15, 2020. Picture taken September 15, 2020. REUTERS/Monicah Mwangi

Chanel Okoth, daughter of Kenyan weightlifter Mercy Obiero, stretches before lifting weights during a training session at a gym within Umoja estate in Nairobi, Kenya September 15, 2020. Picture taken September 15, 2020. REUTERS/Monicah Mwangi

Graphic shows the extension across the globe of the smoke from U.S. wildfires in the West Coast.

Soccer Football - UEFA Nations League - League B - Group 1 - Austria v Romania - Worthersee Stadion, Klagenfurt, Austria - September 7, 2020 Romania's Ciprian Deac is stretched off the pitch after sustaining an injury REUTERS/Leonhard Foeger

A woman stretches out in Central Park, in the Manhattan borough of New York City, New York, U.S., August 26, 2020. REUTERS/Carlo Allegri

Cricket - Third Test - England v Pakistan - Ageas Bowl, Southampton, Britain - August 21, 2020 England's Ollie Pope stretches before coming in to bat, as play resumes behind closed doors following the outbreak of the coronavirus disease (COVID-19) Mike Hewitt/Pool via REUTERS

A man stretches on a half-empty beach as coronavirus disease (COVID-19) heavily affects tourism in Budva, Montenegro, August 8, 2020. Picture taken August 8, 2020. REUTERS/Stevo Vasiljevic

Cricket - First Test - England v Pakistan - Emirates Old Trafford, Manchester, Britain - August 6, 2020 England's Jofra Archer stretches, as play resumes behind closed doors following the outbreak of the coronavirus disease (COVID-19) REUTERS/Lee Smith/Pool

Cricket - First Test - England v Pakistan - Emirates Old Trafford, Manchester, Britain - August 6, 2020 England's Jofra Archer stretches, as play resumes behind closed doors following the outbreak of the coronavirus disease (COVID-19) REUTERS/Lee Smith/Pool

Cricket - Third One Day International - England v Ireland - Ageas Bowl, Southampton, Britain - August 4, 2020 England's Eoin Morgan stretches after James Vince was bowled by Ireland's Craig Young, as play resumes behind closed doors following the outbreak of the coronavirus disease (COVID-19) Adrian Dennis/Pool via REUTERS

Dr. Joseph Varon, 58, the chief medical officer at United Memorial Medical Center (UMMC), wears personal protective equipment (PPE) as he stretches his legs before treating COVID-19 patients at UMMC, during the coronavirus disease (COVID-19) outbreak, in Houston, Texas, U.S., July 25, 2020. "Throughout my life, I have been in major disasters," Varon said. "Nothing has been as difficult to deal with (as) COVID." REUTERS/Callaghan O'Hare SEARCH "COVID-19 HOUSTON VARON" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

A runner wearing a Garmin smart watch, a device which Stanford professor Michael Snyder suggests, might be used to help detect early coronavirus disease (COVID-19) infection, stretches before a workout in Cambridge, Massachusetts, U.S., July 23, 2020. REUTERS/Brian Snyder

A runner wearing a Garmin smart watch, a device which Stanford professor Michael Snyder suggests might be used to help detect early coronavirus disease (COVID-19) infection, stretches before a workout in Cambridge, Massachusetts, U.S., July 23, 2020. REUTERS/Brian Snyder

A runner wearing a Garmin smart watch, a device which Stanford professor Michael Snyder suggests might be used to help detect early coronavirus disease (COVID-19) infection, stretches before a workout in Cambridge, Massachusetts, U.S., July 23, 2020. REUTERS/Brian Snyder

A runner wearing a Garmin smart watch, a device which Stanford professor Michael Snyder suggests might be used to help detect early coronavirus disease (COVID-19) infection, stretches before a workout in Cambridge, Massachusetts, U.S., July 23, 2020. REUTERS/Brian Snyder

Actors dressed as zombies or ghouls stretch before their performance at a drive-in haunted house show, performed by Kowagarasetai (Scare Squad), for people inside a car in order to maintain social distancing amid the spread of the coronavirus disease (COVID-19), at a garage in Tokyo, Japan July 3, 2020. REUTERS/Issei Kato

Artist Alexander Donskoy stretches out a portrait of Nazi dictator Adolf Hitler during a performance on the Day of Memory and Sorrow, marking the anniversary of the beginning of the Great Patriotic War against Nazi Germany in 1941, in Moscow, Russia June 22, 2020. Donskoy, who described his performance "Red Hitler" as a social experiment, pursued a goal to know the public opinion on fascism. REUTERS/Maxim Shemetov

Soccer Football - Premier League - Aston Villa v Sheffield United - Villa Park, Birmingham, Britain - June 17, 2020 Aston Villa's Tyrone Mings helps Ezri Konsa stretch as play resumes behind closed doors following the outbreak of the coronavirus disease (COVID-19) Shaun Botterill/Pool via REUTERS EDITORIAL USE ONLY. No use with unauthorized audio, video, data, fixture lists, club/league logos or "live" services. Online in-match use limited to 75 images, no video emulation. No use in betting, games or single club/league/player publications. Please contact your account representative for further details.

A man stretches his leg as people walk along the promenade at Marine Drive after some restrictions were lifted during a nationwide lockdown to slow the spread of the coronavirus disease (COVID-19), in Mumbai, India, June 8, 2020. REUTERS/Francis Mascarenhas

An acrobat stretches before presenting his act during a circus performance in Atayde's Circus tent, where people enjoy the show from their cars as a measure to combat the spread of the coronavirus disease (COVID-19), in San Nicolas de los Garza, on the outskirts of Monterrey, Mexico May 30, 2020. Picture taken May 30, 2020. REUTERS/Daniel Becerril

May 31, 2020; Daytona, FL, USA; A general view of the front stretch during the graduation ceremony for the Matanzas High School class of 2020 held at Daytona International Speedway. Mandatory Credit: Jasen Vinlove-USA TODAY Sports

May 31, 2020; Daytona, FL, USA; Resource officers of Flagler Schools line the front stretch during the graduation ceremony of the senior class of 2020 from Matanzas High School at Daytona International Speedway. Mandatory Credit: Jasen Vinlove-USA TODAY Sports

May 31, 2020; Daytona, FL, USA; Resource officers of Flagler Schools line the front stretch during the graduation ceremony of the senior class of 2020 from Matanzas High School at Daytona International Speedway. Mandatory Credit: Jasen Vinlove-USA TODAY Sports

May 31, 2020; Daytona, FL, USA; Resource officers of Flagler Schools line the front stretch during the graduation ceremony of the senior class of 2020 from Matanzas High School at Daytona International Speedway. Mandatory Credit: Jasen Vinlove-USA TODAY Sports

May 31, 2020; Daytona, FL, USA; Resource officers of Flagler Schools line the front stretch during the graduation ceremony of the senior class of 2020 from Matanzas High School at Daytona International Speedway. Mandatory Credit: Jasen Vinlove-USA TODAY Sports

May 31, 2020; Daytona, FL, USA; Resource officers of Flagler Schools line the front stretch during the graduation ceremony of the senior class of 2020 from Matanzas High School at Daytona International Speedway. Mandatory Credit: Jasen Vinlove-USA TODAY Sports

U.S. Olympic marathoner Molly Seidel stretches with her sister Izzy before a training session during the coronavirus disease (COVID-19) outbreak in Cambridge, Massachusetts, U.S., May 29, 2020. REUTERS/Brian Snyder

U.S. Olympic marathoner Molly Seidel stretches before a training session during the coronavirus disease (COVID-19) outbreak in Cambridge, Massachusetts, U.S., May 29, 2020. REUTERS/Brian Snyder

U.S. Olympic marathoner Molly Seidel stretches before a training session with her coach Jon Green and her sister Izzy during the coronavirus disease (COVID-19) outbreak in Cambridge, Massachusetts, U.S., May 29, 2020. REUTERS/Brian Snyder

With the dome of the U.S. Capitol in the background, a homeless man named Damu stretches on the National Mall in Washington, U.S., May 27, 2020. REUTERS/Kevin Lamarque TPX IMAGES OF THE DAY

Soccer Football - Bundesliga - Borussia Dortmund v Bayern Munich - Signal Iduna Park, Dortmund, Germany - May 26, 2020 Bayern Munich's Manuel Neuer stretches after the match as coach Hansi Flick talks to the media, as play resumes behind closed doors following the outbreak of the coronavirus disease (COVID-19) Federico Gambarini/Pool via REUTERS DFL regulations prohibit any use of photographs as image sequences and/or quasi-video

A lifeguard stretches while watching the water from a tower at the beach on Memorial Day weekend during the outbreak of the coronavirus disease (COVID-19) in Huntington Beach, California, U.S., May 23, 2020. REUTERS/Patrick T. Fallon

A person stretches amongst a row of benches blocked off to promote social distancing on the Long Beach boardwalk on the first day that New York beaches were opened ahead of the Memorial Day weekend following the outbreak of the coronavirus disease (COVID-19) on Long Island, New York, U.S., May 22, 2020. REUTERS/Andrew Kelly

A woman is seen wearing a protective face mask as a man stretches in Mile End Park following the outbreak of the coronavirus disease (COVID-19), London, Britain, May 16, 2020. REUTERS/Steven Watt

Olympic and World Champion long distance runner Mo Farah stretches as he exercises near deer in Richmond Park, following the outbreak of the coronavirus disease (COVID-19), in London, Britain May 12, 2020. Picture taken May 12, 2020. REUTERS/Dylan Martinez u000d

Olympic and World Champion long distance runner Mo Farah stretches by an ancient English oak tree in Richmond Park, following the outbreak of the coronavirus disease (COVID-19), in London, Britain May 12, 2020. Picture taken May 12, 2020. REUTERS/Dylan Martinez u000d

Health workers wearing protective suits instruct a patient on how to stretch in the Intensive Care Unit (ICU) for the coronavirus disease (COVID-19) patients at Persahabatan Hospital in Jakarta, Indonesia, May 13, 2020. REUTERS/Willy Kurniawan

Health workers wearing protective suits instruct a patient on how to stretch in the Intensive Care Unit (ICU) for the coronavirus disease (COVID-19) patients at Persahabatan Hospital in Jakarta, Indonesia, May 13, 2020. REUTERS/Willy Kurniawan

May 12, 2020; Scottsdale, Arizona, USA; PGA golfer Kevin Streelman stretches on the 10th tee box during round one at the Scottsdale AZ Open at Talking Stick Golf Club's OÕodham course. This is the first semi-significant sports event to take place in the Valley since the sports shutdown in March due to the coronavirus (COVID-19) pandemic. Mandatory Credit: Rob Schumacher-USA TODAY NETWORK

Artist Bruce Munro works on installation 'Ribbon of Light', with wife Serena and children Tink and Tom, as a tribute to UK health and key workers, along a hilltop footpath, whilst under lockdown, following the outbreak of the coronavirus disease (COVID-19), near Warminster in Wiltshire, south west Britain, May 7, 2020. The 1.5 kilometre shimmering piece, being created with over 100 000 disused CDs, and attached along a stretch of fencing on the Long Knoll hillside, will take Bruce and family members several months to finish but, says the artist, will spread both joy to walkers exercising after lockdown ends and raise money for NHS workers. Picture taken May 7, 2020. REUTERS/Toby Melville

A walker views the installation 'Ribbon of Light', by artist Bruce Munro as a tribute to UK health and key workers, along a hilltop footpath, following the outbreak of the coronavirus disease (COVID-19), near Warminster in Wiltshire, south west Britain, May 7, 2020. The 1.5 kilometre shimmering piece, being created with over 100 000 disused CDs, and attached along a stretch of fencing on the Long Knoll hillside, will take Bruce and family members several months to finish but, says the artist, will spread both joy to walkers exercising after lockdown ends and raise money for NHS workers. Picture taken May 7, 2020. REUTERS/Toby Melville

Artist Bruce Munro poses for a portrait as he works on installation 'Ribbon of Light', as a tribute to UK health and key workers, along a hilltop footpath, whilst under lockdown, following the outbreak of the coronavirus disease (COVID-19), near Warminster in Wiltshire, south west Britain, May 7, 2020. The 1.5 kilometre shimmering piece, being created with over 100 000 disused CDs, and attached along a stretch of fencing on the Long Knoll hillside, will take Bruce and family members several months to finish but, says the artist, will spread both joy to walkers exercising after lockdown ends and raise money for NHS workers. Picture taken May 7, 2020. REUTERS/Toby Melville

Artist Bruce Munro poses for a portrait as he works on installation 'Ribbon of Light', as a tribute to UK health and key workers, along a hilltop footpath, whilst under lockdown, following the outbreak of the coronavirus disease (COVID-19), near Warminster in Wiltshire, south west Britain, May 7, 2020. The 1.5 kilometre shimmering piece, being created with over 100 000 disused CDs, and attached along a stretch of fencing on the Long Knoll hillside, will take Bruce and family members several months to finish but, says the artist, will spread both joy to walkers exercising after lockdown ends and raise money for NHS workers. Picture taken May 7, 2020. REUTERS/Toby Melville

The installation 'Ribbon of Light', by artist Bruce Munro as a tribute to UK health and key workers is seen along a hilltop footpath, following the outbreak of the coronavirus disease (COVID-19), near Warminster in Wiltshire, south west Britain, May 7, 2020. The 1.5 kilometre shimmering piece, being created with over 100 000 disused CDs, and attached along a stretch of fencing on the Long Knoll hillside, will take Bruce and family members several months to finish but, says the artist, will spread both joy to walkers exercising after lockdown ends and raise money for NHS workers. Picture taken May 7, 2020. REUTERS/Toby Melville

Artist Bruce Munro works on installation 'Ribbon of Light', as a tribute to UK health and key workers, along a hilltop footpath, whilst under lockdown, following the outbreak of the coronavirus disease (COVID-19), near Warminster in Wiltshire, south west Britain, May 7, 2020. The 1.5 kilometre shimmering piece, being created with over 100 000 disused CDs, and attached along a stretch of fencing on the Long Knoll hillside, will take Bruce and family members several months to finish but, says the artist, will spread both joy to walkers exercising after lockdown ends and raise money for NHS workers. Picture taken May 7, 2020. REUTERS/Toby Melville

Artist Bruce Munro works on installation 'Ribbon of Light', with his daughter Tink, as a tribute to UK health and key workers, along a hilltop footpath, whilst under lockdown, following the outbreak of the coronavirus disease (COVID-19), near Warminster in Wiltshire, south west Britain, May 7, 2020. The 1.5 kilometre shimmering piece, being created with over 100 000 disused CDs, and attached along a stretch of fencing on the Long Knoll hillside, will take Bruce and family members several months to finish but, says the artist, will spread both joy to walkers exercising after lockdown ends and raise money for NHS workers. Picture taken May 7, 2020. REUTERS/Toby Melville

Artist Bruce Munro works on installation 'Ribbon of Light', as a tribute to UK health and key workers, along a hilltop footpath, whilst under lockdown, following the outbreak of the coronavirus disease (COVID-19), near Warminster in Wiltshire, south west Britain, May 7, 2020. The 1.5 kilometre shimmering piece, being created with over 100 000 disused CDs, and attached along a stretch of fencing on the Long Knoll hillside, will take Bruce and family members several months to finish but, says the artist, will spread both joy to walkers exercising after lockdown ends and raise money for NHS workers. Picture taken May 7, 2020. REUTERS/Toby Melville

Artist Bruce Munro works on installation 'Ribbon of Light', as a tribute to UK health and key workers, along a hilltop footpath, whilst under lockdown, following the outbreak of the coronavirus disease (COVID-19), near Warminster in Wiltshire, south west Britain, May 7, 2020. The 1.5 kilometre shimmering piece, being created with over 100 000 disused CDs, and attached along a stretch of fencing on the Long Knoll hillside, will take Bruce and family members several months to finish but, says the artist, will spread both joy to walkers exercising after lockdown ends and raise money for NHS workers. Picture taken May 7. REUTERS/Toby Melville

Artist Bruce Munro works on installation 'Ribbon of Light', as a tribute to UK health and key workers, along a hilltop footpath, whilst under lockdown, following the outbreak of the coronavirus disease (COVID-19), near Warminster in Wiltshire, south west Britain, May 7, 2020. The 1.5 kilometre shimmering piece, being created with over 100 000 disused CDs, and attached along a stretch of fencing on the Long Knoll hillside, will take Bruce and family members several months to finish but, says the artist, will spread both joy to walkers exercising after lockdown ends and raise money for NHS workers. Picture taken May 7. REUTERS/Toby Melville

The installation 'Ribbon of Light', by artist Bruce Munro as a tribute to UK health and key workers is seen along a hilltop footpath, following the outbreak of the coronavirus disease (COVID-19), near Warminster in Wiltshire, south west Britain, May 7, 2020. The 1.5 kilometre shimmering piece, being created with over 100 000 disused CDs, and attached along a stretch of fencing on the Long Knoll hillside, will take Bruce and family members several months to finish but, says the artist, will spread both joy to walkers exercising after lockdown ends and raise money for NHS workers. Picture taken May 7, 2020. REUTERS/Toby Melville

The installation 'Ribbon of Light', by artist Bruce Munro as a tribute to UK health and key workers is seen along a hilltop footpath, following the outbreak of the coronavirus disease (COVID-19), near Warminster in Wiltshire, south west Britain, May 7, 2020. The 1.5 kilometre shimmering piece, being created with over 100 000 disused CDs, and attached along a stretch of fencing on the Long Knoll hillside, will take Bruce and family members several months to finish but, says the artist, will spread both joy to walkers exercising after lockdown ends and raise money for NHS workers. Picture taken May 7, 2020. REUTERS/Toby Melville

The installation 'Ribbon of Light', by artist Bruce Munro as a tribute to UK health and key workers is seen along a hilltop footpath, following the outbreak of the coronavirus disease (COVID-19), near Warminster in Wiltshire, south west Britain, May 7, 2020. The 1.5 kilometre shimmering piece, being created with over 100 000 disused CDs, and attached along a stretch of fencing on the Long Knoll hillside, will take Bruce and family members several months to finish but, says the artist, will spread both joy to walkers exercising after lockdown ends and raise money for NHS workers. Picture taken May 7, 2020. REUTERS/Toby Melville

Artist Bruce Munro works on installation 'Ribbon of Light', with his daughter Tink, as a tribute to UK health and key workers, along a hilltop footpath, whilst under lockdown, following the outbreak of the coronavirus disease (COVID-19), near Warminster in Wiltshire, south west Britain, May 7, 2020. The 1.5 kilometre shimmering piece, being created with over 100 000 disused CDs, and attached along a stretch of fencing on the Long Knoll hillside, will take Bruce and family members several months to finish but, says the artist, will spread both joy to walkers exercising after lockdown ends and raise money for NHS workers. Picture taken May 7, 2020. REUTERS/Toby Melville

Artist Bruce Munro works on installation 'Ribbon of Light', as a tribute to UK health and key workers, along a hilltop footpath, whilst under lockdown, following the outbreak of the coronavirus disease (COVID-19), near Warminster in Wiltshire, south west Britain, May 7, 2020. The 1.5 kilometre shimmering piece, being created with over 100 000 disused CDs, and attached along a stretch of fencing on the Long Knoll hillside, will take Bruce and family members several months to finish but, says the artist, will spread both joy to walkers exercising after lockdown ends, and raise money for NHS workers. Picture taken May 7, 2020. REUTERS/Toby Melville TPX IMAGES OF THE DAY

A runner stops and stretches her arms while exercising on the empty front steps of the U.S. Supreme Court building during the coronavirus disease (COVID-19) outbreak, in Washington, U.S. May 8, 2020. REUTERS/Jonathan Ernst TPX IMAGES OF THE DAY