103-year-old Belgian oldest former general practitioner Alfons Leempoels poses next to a start line intending to walk the equivalent of a marathon in his garden to raise money for scientists researching the coronavirus disease (COVID-19) in Rotselaar, Belgium June 9, 2020. REUTERS/Yves Herman TPX IMAGES OF THE DAY 

103-year-old Belgian oldest former general practitioner Alfons Leempoels walks in his garden intending to cover a distance equivalent of a marathon to raise money for scientists researching the coronavirus disease (COVID-19) in Rotselaar, Belgium June 9, 2020. REUTERS/Yves Herman 

103-year-old Belgian oldest former general practitioner Alfons Leempoels poses in his garden intending to cover a distance equivalent of a marathon to raise money for scientists researching the coronavirus disease (COVID-19) in Rotselaar, Belgium June 9, 2020. REUTERS/Yves Herman 

103-year-old Belgian oldest former general practitioner Alfons Leempoels notes the distances he does everyday in his garden intending to cover a distance equivalent of a marathon to raise money for scientists researching the coronavirus disease (COVID-19) in Rotselaar, Belgium June 9, 2020. REUTERS/Yves Herman 

103-year-old Belgian oldest former general practitioner Alfons Leempoels shows sticks corresponding to each distance he walks in his garden intending to cover a distance equivalent of a marathon to raise money for scientists researching the coronavirus disease (COVID-19) in Rotselaar, Belgium June 9, 2020. REUTERS/Yves Herman 

103-year-old Belgian oldest former general practitioner Alfons Leempoels walks in his garden intending to cover a distance equivalent of a marathon to raise money for scientists researching the coronavirus disease (COVID-19) in Rotselaar, Belgium June 9, 2020. REUTERS/Yves Herman 

Lisa Calvert and Colin Toal participate in boxing training for three twelve hour days for Northamptonshire Health Charity to raise money for the NHS following the outbreak of the coronavirus disease (COVID-19), Upton, Britain, May 10, 2020. REUTERS/Andrew Boyers 

NHS nurse Lisa Calvert participates in boxing training for three twelve hour days for Northamptonshire Health Charity to raise money for the NHS following the outbreak of the coronavirus disease (COVID-19), Upton, Britain, May 10, 2020. REUTERS/Andrew Boyers 

Rajinder Singh exercises on his allotment in Harmondsworth, the 73 year old is raising money for the NHS by posting daily workout videos online and is gaining a following on social media as the 'Skipping Sikh', following the outbreak of the coronavirus disease (COVID-19), Harmondsworth, Britain, May 7, 2020. REUTERS/Paul Childs TPX IMAGES OF THE DAY 

Retired British Army Captain Tom Moore, 99, raises money for health workers by attempting to walk the length of his garden one hundred times before his 100th birthday this month as the spread of coronavirus disease (COVID-19) continues, Marston Moretaine, Britain, April 15, 2020. REUTERS/Peter Cziborra TPX IMAGES OF THE DAY 

Nick Lowden runs a marathon in his garden raising money for NHS, as the spread of the coronavirus disease (COVID-19) continues, Manchester, Britain, April 5, 2020. REUTERS/Molly Darlington TPX IMAGES OF THE DAY 

Harry Richards and Charlie Harbord attempt to row the length of the River Thames (346km) from their living room to raise money for the NHS, following the outbreak of the coronavirus disease (COVID-19), London, Britain, May 7, 2020. REUTERS/Peter Nicholls 

Rudo Moyo (59) who is blind walks a lap in his garden to raise money for the NHS. He is walking 260 laps of his garden for ten days, following the outbreak of the coronavirus disease (COVID-19) in Washington, County Durham, Britain, April 25, 2020. REUTERS/Lee Smith TPX IMAGES OF THE DAY 

Cheshire Dogs Home staff run 26 laps of the dog assault course to raise money as part of ‘the 2.6 challenge’ in Warrington, following the outbreak of the coronavirus disease (COVID-19), Warrington, Britain, April 26, 2020. REUTERS/Molly Darlington 

Mark Gammage rows a marathon to raise money for St Luke’s Hospice as part of ‘the 2.6 challenge’ in Wychwood Park, following the outbreak of the coronavirus disease (COVID-19), Crewe, Britain, April 26, 2020. REUTERS/Molly Darlington 

Frankie Lynch celebrates on the Mall where the finish of the London Marathon was due to take place today after running 2.6 miles instead of 26 miles to raise money for The Running Charity. The marathon was postponed following the outbreak of the coronavirus disease (COVID-19) in London, Britain, April 26, 2020. REUTERS/John Sibley 

Cloda Lowden runs a marathon in her garden raising money for NHS, as the spread of the coronavirus disease (COVID-19) continues, Manchester, Britain, April 5, 2020. REUTERS/Molly Darlington 

Cheshire Dogs Home staff run 26 laps of the dog assault course to raise money as part of ‘the 2.6 challenge’ in Warrington, following the outbreak of the coronavirus disease (COVID-19), Warrington, Britain, April 26, 2020. REUTERS/Molly Darlington