Fact 5: The windpipe and lungs were important symbols in ancient Egypt.
In humans and animals, the windpipe and lungs must work together to provide oxygen throughout the body.
Some of the amazing facts about breathing even pre-date modern science.
The ancient Egyptians understood the importance of working lungs and windpipe together and created a hieroglyph that depicts the windpipe attached to the lungs, to symbolize the unity between upper and lower class.
As pharaohs were responsible for ruling over the lands, the hieroglyph of the lungs and windpipe is often seen on their artefacts, clothes, jewellery, and furniture.
Fact 6: Chest movement while you breathe isn’t because of air movement.
We learned some interesting facts about breathing in school. And of these is that: when we breathe in, our chest swells and when we breathe out, our chest gets back to the normal size. But, you may not know that the chest movements while breathing are not because of air movements.
It’s because of one of the vital muscles of respiration: the diaphragm.
Your diaphragm is a thin dome-shaped muscle just below your ribs. This muscle separates the chest and the abdominal cavities.
The diaphragm is the muscle that moves during respiration along with the muscles between the ribs – your intercostal muscles. It contracts and moves down thereby increasing the space in the chest cavity. The intercostals contract to pull the rib cage outward and upward at the same time.
The exact opposite occurs during expiration to force out all the air from the lungs.
Fact 7: You lose a lot of water while breathing.
Breathing includes taking in oxygen and supplying it to every cell and tissue in the body and giving out carbon dioxide. But, do you know when you breathe out, you also tend to breathe out a lot of water. How much water do you lose while breathing out?
According to a 2012 article in the journal Polish Penumonology and Allergology, researchers found that when at rest, humans breathe out up to 0.59 ounces (17.5 millilitres) of water per hour.
But the study also observed that you tend to lose four times the water while exercising.