The voice is a basic tool for communication, and it is even more important for people who use their voice professionally. Our voice is produced by the vibration of our vocal cords. To protect our vocal cords, we need to learn the correct way to use our voice and avoid excessive use of our voice, especially during upper respiratory infections. When you use your voice for too long, your voice is too high and exceeds your vocal ability, you will easily develop lesions in your vocal cords. Therefore, it is good for our vocal cords to change the frequency and loudness of our voice, but on the contrary, speaking in a single tone often increases the fatigue of pronunciation. This is because different tones, different parts of the vocal folds vibrate, learn to alternate high and low tones, can make the vocal folds get alternate rest. Your voice is like money in the bank, if you only use the interest, your voice will last forever. When you have to shout in anger, keep your voice in a gentle tone. In short, please try to use the magnetic tone of your voice as much as possible. In fact, it is not only necessary to protect your voice when vocalizing, but also to develop good habits in your daily life. Make sure you get enough sleep so that your vocal cords are well rested and relaxed during the day. Diet should not be too full, otherwise it will easily cause throat reflux and stimulate the vocal cords to produce lesions. Eat less spicy and irritating food, do not smoke and drink less alcohol. Ensure the necessary daily water intake, so that the vocal cords get enough hydration and lubrication. In daily life, we need to pay attention to strengthening exercise, enhancing physical fitness, improving resistance to upper respiratory tract infections, and avoiding stimulation of the upper respiratory tract by harmful gases and dust in the environment. Occupational or habitual overuse of voice can use the following tips: observe your work environment to see what can be done to improve the acoustics; for those who speak softly or are prone to pronunciation fatigue, a loudspeaker can help improve the sound effects, overcome background noise, and strengthen the attention of listeners; practice deep breathing to keep the length of statements consistent with the breath; try to have more conversations and let your voice take a short break; think about what else will aggravate the voice after work; if you say too much today, is it possible to say less tomorrow; when the throat feels uncomfortable, you can use a warm towel to apply a hot compress to the throat for about 5 minutes; before and after a long time of speaking or singing, relax your vocal cords, and you can use your mouth to sip a thin straw to pronounce into it for a few minutes. In addition, yawning is also a good way to relax.