A special hood was used to measure the volunteers’ oxygen consumption
A special hood was used to measure the volunteers' oxygen consumption - We do it every day but barely give it a thought: chewing our food. But the 'simple' process of masticating food may have played a crucial role in the evolution of our jaws, facial muscles and teeth. A team of researchers including paleoanthropologist Amanda Henry from Leiden University have published about this in the journal Sciences Advances. 'No one has ever measured the energy cost of human chewing before, and it is a significant amount. It's highly likely that the evolutionary changes in our jaws were to optimise the chewing system,' says Henry. Tests with chewing gum. Fifteen women and six men aged between 18 and 45 took part in the study.
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