Little Breathers

Find out how humans can overcome biological responses to hold their breath underwater for several minutes. Biology - Human Body - Learning Points. When we hold our breaths, our lungs signal the brain to start breathing again. The human body has an innate diving response: when cold water hits the face, the body reacts by conserving oxygen. With training, humans can blunt the signals from the lungs to the brain and be able to hold our breaths for much longer. With practice, humans could hold their breaths for up to nine minutes - which is the same as a dolphin! A Twig Context Film. Reinforce and extend the learning required by the curriculum. Twig’s context films show abstract concepts in action in the real world.