Why must we breathe?
Why do we breathe?
What controls our breathing? Why does our breath stink when we wake up in the morning? How does human breath affect the environment? Human Body: Why we don't get tired breathing? Why do other people inhale more air than others can? How do plants help us breathe? Can humans breathe liquid oxygen? Why can't I breathe and why do I feel so weak? If the air is 78% nitrogen and 21% oxygen, why do we say we breathe in oxygen but not nitrogen? Why do I feel like I can't breathe in extremely warm air? What are the mechanisms of breathing inspiration and expiration? Is the air we breathe in equals the air we breathe out? What is the relative humidity of a human breath? Why do we sometimes get the urge to clear our throat or cough when we see or hear someone cough or clear their throat? How can I learn to breathe better? When we breathe air do we breathe other gases as well and if do then what happens to those harmful gases? How the diaphragm helps ventilation of the lungs when breathing in.how can I explain it? What else can you breath apart from air? Why does air flow? Why do our eyes water when we cough? Why we take a bath? Why do people tend to breathe louder while sleeping than while awake? What is the cause of shortness of breath? What can you do if you always have bad breath? How old is the oxygen we breath? What happens when water goes in your lungs? Why do other people inhale more air at one time than others can? How do breathing and cellular respiration differ? Why can we feel head pressure when we cough? Why do we do bath?