Explain the physiological process of how exercise can you fight stress. explain what endorphins are and the role they play in this process. how can exercises that promote cardiorespiratory fitness and endurance, muscular fitness and endurance, and flexibility you fight stress?

Exercise increases your overall health and your sense of well-being, which puts more pep in your step every day. But exercise also has some direct stress-busting benefits. It pumps up your endorphins. Physical activity helps to bump up the production of your brain's feel-good neurotransmitters, called endorphins

Air goes past the epiglottis and into the trachea when you breathe in. from there, it goes to your vocal cords in the larynx until it reaches the bronchi. from the bronchi, air passes into each lung.