This means that when the body demands more oxygen during exercise, less oxygen reaches the brain, heart, muscles and other organs.
In your body, the heart and lungs work together to make sure that oxygen gets to all the other organs of your body.
oxygen<>gets<>to all the other organs of your body$$$the heart and lungs<>work together<>to make sure<>In your body$$$the heart and lungs<>work together to make<>sure that oxygen gets to all the other organs of your body