Furthermore, when fit and healthy people exercise their carbon dioxide levels rise so that it is easier for our bodies to receive oxygen and blood. After exercise breathing becomes slower because of the respiratory system and this causes higher carbon dioxide levels which will make us have more oxygen
Furthermore, when fit and healthy people exercise their carbon dioxide levels rise so that it is easier for our bodies to receive oxygen and blood. After exercise breathing becomes slower because of the respiratory system and this causes higher carbon dioxide levels which will make us have more oxygen