A metrobus driver performs squats at Rio de los Remedios metrobus station in Mexico City, July 23, 2015. To combat growing obesity, lawmakers have introduced a new campaign encouraging physical activity. This machine, installed in 21 metrobus stations around the city, asks its user to do 10 squats, and when all ten are performed correctly, it prints out a free ticket. (Photo by Edgard Garrido/Reuters)
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