The low test value of vital capacity (compared with the normal value) indicates that the body's ability to absorb oxygen and discharge waste gas is poor, so the oxygen supply in the body is insufficient and some work of the body cannot be carried out normally.
Once the body needs to consume a lot of oxygen (such as long-term study, work and strenuous exercise), there will be serious lack of oxygen, which will lead to headache, dizziness, chest tightness, listlessness, inattention, memory loss, insomnia and other adverse reactions, which will not only affect study and work, but also cause many irreparable losses to health.
The role of vital capacity:
Lung capacity is closely related to people's breathing. Physiological research shows that all organs, systems, tissues and cells of the human body consume oxygen all the time, and only when the oxygen supply is sufficient can the body work normally. The oxygen supply in the human body depends entirely on the breathing of the lungs. In the process of breathing, the lungs not only inhale oxygen, but also expel carbon dioxide metabolized in the body.
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Skills to enhance vital capacity:
1, practice telling stories. Aaron johnson, an assistant professor of phonetics at the University of Illinois in the United States, believes that reading aloud is very important to exercise vital capacity. It is suggested that the old man read aloud an article in the newspaper after getting up every day.
2. Sing loudly. Edie Habana, head of the Department of Phonology and Linguistic Pathology at Emory University, said: "The health benefits of singing loudly cannot be underestimated." It is suggested that the elderly should sing along with the radio, join a choir or sing karaoke.
3. Exercise can also enhance vital capacity. Habner pointed out that when a person is in good health, his sound effect will be the best. Even simple walking can improve physical fitness, and its effect will extend to the respiratory system and even the sound field.
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