This statement is absolutely true. When we exercise our muscles demand oxygen, which is carried through bloodstream. The lungs have the function of giving oxygen to the blood, to be deliver around the whole body. So, when the body demand more oxygen (like when we exercise), lungs and heart have to work faster, having as a result an accelerated cardiorespiratory system.
Corona because brought political pressure on candidates like Trump and Biden on several topics. This put pressure on the public because it made people rethink who they would vote for depending on how a politician handled corona.