On the one hand, chewing gum can exercise facial muscles, make them elastic enough and make facial skin look more shiny.

Second, chewing gum can make the gums more stable. As people say, it is rare to lose teeth in the later stage.

Third, chewing gum can refresh your breath, which should be a common understanding of chewing gum by many people.

Therefore, chewing gum has many benefits.

shortcomings

If you chew this gum too much all day, it will absorb more calories, so it may have a certain impact on the baby's hungry teeth and dental caries, which may cause ordinary young people to consume too many calories. It may cause some cardiovascular and cerebrovascular diseases for middle-aged and elderly people, and may cause blood sugar increase for diabetics, especially those who have filled their teeth. It will also harm the environment. Xinhuanet Stockholm 65438+A study conducted by Swiss scientists on February 25th shows that chewing gum often destroys substances used to fill teeth in people's mouths and releases amalgam, which leads to excessive mercury content in people's blood and urine, which is harmful to health. The study was conducted by a university hospital in Gothenburg, western Sweden, and tested two groups of people. Each of them has at least five filled teeth. In the first group, each person chews 7 pieces of gum every day for an average of 5 hours. The number of people in the control group is the same as that in the first group, and the number of fillings is the same, but the average chewing gum is only 30 minutes per week. Then, the researchers compared the mercury content in the blood and urine of this group. As a result, they found that the group who chewed more gum had twice as much mercury in their blood as the group who chewed less gum. The mercury content in their urine and exhaled gas is three times higher than that of people who don't chew regularly. Mercury is a substance that can harm people's brain, central nervous system and kidneys. Excessive intake of mercury will not only lead to poisoning, but also lead to death.