Martina, a member of the Tsimane Amazon tribe, is officially 84 years old. But she can walk faster through the forest than the much younger camera crew following her.
Do people age better in the Amazon?
TOPSHOT - A Waiapi man aims bow and arrow at the Waiapi indigenous reserve in the Manilha village, in Amapa state, Brazil, on October 13, 2017. The Waiapi are one of the most traditional tribes in Brazil's Amazon, but modern life is getting closer and the forest dwellers are learning how to navigate between two worlds. (Photo by Apu GOMES / AFP) (Photo by APU GOMES/AFP via Getty Images)