Why hiccup yawn cough or sneeze?

Answer 1

Hiccups: Like with the beating of your heart, your diaphragm and lungs have a smooth muscle/involuntary repetitive action cycle to them, you don't always have to remember to breath, right?. Your body is hard-wired to breath at a certain rate, causing your lungs and diaphragm to contract at intervals. Now, as you know from going to the bathroom and straining to poo, your diaphragm can be consciously controlled as well. So hiccups are caused when your voluntary actions on your diaphragm put it out of sync with the involuntary contractions of your lungs. Your lungs and ribs contract to pull in air at the same moment that your diaphragm relaxes which would push out air, and that smacking together of the muscles is what we call a hiccup.

That is why as a cure, we hold our breath, or drink water for a certain period of time. By stopping our ability to breath, we push the metaphorical reset button on our lungs and diaphragm, re-syncing the muscles.

Yawn: As you know, breathing brings oxygen into our lungs which then oxygenates our red blood cells who bring the oxygen to the rest of our bodies for a variety of purposes: to clear away lactic acid build up in our muscles, get rid of muscle cramps, improve physical and brain function, to turn into energy, and a variety of other processes. We need oxygen to live. When you finally go to sleep, your body doesn't, your heart keeps beating, and you keep breathing, often deeper in your sleep. That's because when you sleep, your muscles and your brain are resting, while your body refuels them with oxygen for the next day, clearing away any buildup of waste and healing you while you sleep. When you're tired, your body isn't getting enough oxygen. A yawn is your body's attempt at a quick refresh and awakening by pulling in a lot of oxygen to rejuvenate your brain, improve it's function and blood flow.

So the next time you're in a deep conversation with somebody and they yawn, say, "thank you," because it's a compliment to you. Your conversation is so interesting and complex that they need to increase oxygen and their brains' function to understand everything you're saying.

Cough: A cough and a sneeze are just wonderful, they're our bodies attempts at protecting us. A cough is when your body senses something liquid or solid pushing to get into the lungs. Your lungs close off their opening, tense up, and Push back, Boom! a Cough bursts forth, pushing all the air in your lungs at the intruding object or liquid sending it into your mouth or throat, where you can decide to swallow it or spit it out. It's a defense mechanism to protect the lungs from foreign objects.

Sneeze: A sneeze is a beautiful thing, it's your body's way of protecting you by expelling any dangerous particles it senses in your nasal cavity. Like a cough, a sneeze protects you from foreign particle, but this defensive play is aimed at your nose. When we breath in through our nose the little hairs and mucous membrane inside the nose catch any offending particles that are too big or don't belong in the lungs, like a safety net. When we blow our noses and mucous comes out, that's us cleaning out the net. But sometimes, bad particles get deep in the net of our nose who then sends a message to the lungs of "Danger! Beware!" Our lungs then, breath in through our mouths and "Achoo!" Shoot air out through the nose and mouth at speeds of up to 100mph, sending away any offending particles and clearing the nose net for good function and more breathing.

I hope this helps, sorry if I went into too much detail. The human body is just SO cool!

Answer 2

Hiccup- your diaphragm had a muscle spasm or you breathed in to fast

Yawn- when your body doesn't have a lot of energy

Cough- to get out bad germs

Sneeze- to get out bad germs