Spring is the season when sneezing and yawning are easy to recur. First, flowers bloom in spring, and there are many pollens, which stimulate the nasal cavity and make people sneeze; Second, it is easy to get sleepy in spring, and people will yawn when they get sleepy. Both sneezing and yawning are stressful natural reactions of people, but some people feel that this is very unsightly, especially in full view of the public, so they choose to endure when they want to sneeze or yawn. But is it really good not to sneeze or yawn? In fact, it is bad for health to sneeze or yawn often.
The reason why people sneeze is that they may inhale things that stimulate the nasal cavity, such as dust, pollen, special smell, and so on. It is also possible that when the nasal mucous membrane congestion and secretion increase due to a cold, people sneeze a lot of bacteria and foreign bodies out of the body to keep the respiratory tract unblocked, which is a natural defense mechanism of the human body. If you try to resist it, it is equivalent to swallowing the bacteria back. If you do this for a long time, it will easily cause nasal disease.
What needs to be noticed in public is not elegance, but whether sneezing will affect others and cause others' disgust. There is a kind of people who have no public conscience. They sneeze without scruples. They often sneeze at others or onto public property, which will infect others with germs. People who have colds need special attention. When we sneeze at ordinary times, we should sneeze in the direction of no one, and we should hold paper towels in our hands.
Yawning is also a natural response of the human body. It is a conditioned deep breathing activity. When people yawn, they can replenish the oxygen they need, discharge more carbon dioxide, and relax the tense mood, relax muscles and eliminate fatigue. If you endure yawning, you will accumulate too much carbon dioxide, which will cause the chest cavity to be depressed, the organs of the body will be more tired, the hypoxia of brain cells cannot be improved, and the stress ability of people will become worse.
Yawning is a physiological reaction beneficial to health. Of course, it is harmful to open your mouth in public and exhale a stink of garlic. Therefore, it is better to bow your head or face the side of no one and cover your mouth with your hands when yawning in a crowded place. When sleep is insufficient or overworked, yawning is more frequent. This is the brain warning us that we need to rest now. If possible, it is best to close the curtain and have a look.
Don't hold your sneeze and yawn for a long time, as it is easy to get sick; Don't fight with impunity, which will affect others.