1. Chewing gum is a kind of candy which is made of natural rubber or glycerol resin as the main raw material, syrup and sweetener. Because of its strong viscosity, chewing gum can remove the residue from teeth and mouth, and play a role in cleaning mouth and refreshing breath.
2. Chewing exercise when eating chewing gum can stimulate saliva secretion, thus promoting digestion and helping to increase appetite. At the same time, saliva can wash the oral surface and clean the oral cavity.
3. Chewing exercise when chewing gum can promote facial muscle movement, promote blood circulation and improve the metabolic activity of skin cells. Normal blood circulation and metabolism are the key to skin health, which helps to improve skin quality, reduce wrinkle growth and make the face more ruddy.
4. Research shows that under the stimulation of chewing exercise, the nerves of mandibular muscles will send a signal related to satiety to the brain area that controls appetite, so that hunger will disappear, thus reducing food intake, while chewing exercise will increase energy consumption, thus achieving the effect of slimming.
Chewing gum helps to enhance memory and attention, which is a simple and effective way to relieve stress. Chewing gum can enhance alpha brain waves, which is a sign that the spirit is in a calm state, which can relieve stress and tension and restore calm.
Second, the disadvantages of eating chewing gum
1, most chewing gum uses sucrose as sweetener. When chewing gum, sugar stays in the mouth for a long time. Cariogenic bacteria in the mouth will use sucrose to produce acidic substances, which will corrode teeth and decalcify them, thus inducing dental caries.
People who fill their teeth with mercury-containing materials had better not chew gum. A study by Swiss scientists found that chewing gum often destroys the substances used to fill teeth in the mouth and releases amalgam, which leads to excessive mercury content in blood and urine, thus causing harm to the brain, central nervous system and kidneys.
Chewing gum is not good for children. Because the child's self-control ability is poor, if he keeps chewing gum in his mouth all day, he may be swallowed or mistakenly entered into the trachea, which is life-threatening. In addition, chewing gum for a long time, the masticatory muscles are always in a state of tension, which may develop the habit of grinding teeth during sleep, thus affecting the quality of children's sleep.
The doctor advised not to chew gum for more than 15 minutes. People with stomach problems should not chew gum too much, because chewing gum for a long time will reflexively secrete a lot of stomach acid. Especially on an empty stomach, not only nausea, loss of appetite, acid reflux and other symptoms will appear. But in the long run, it may also lead to diseases such as gastric ulcer and gastritis.
5, chewing gum for too long, chewing muscles have been in a state of tension, it is possible to develop the habit of night grinding. In addition, if teenagers chew gum during their physical development, it may cause excessive movement of masseter muscles, stimulate the muscle and bone development of mandibular angle, and finally present a "square Chinese face" in appearance, which will affect women's face shape.
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1, UK: No chewing gum.
Proposals put forward by five departments of the British government stipulate that cleaners and other professionals can impose fines on littering in the street on the spot, list chewing gum spitting as a maximum fine of 50 pounds, and prohibit the sale of chewing gum near schools, cinemas and stadiums.
2. Singapore: No chewing gum.
From 65438 to 0992, Singapore became the first country in the world to ban chewing gum, and the government resolutely banned the import, sale and manufacture of chewing gum. The Singapore government also strictly stipulates that people who smuggle chewing gum will be sentenced to 1 year imprisonment, with a maximum fine of $65,438+0,000 yuan, but a few carriers are not included.
In May 2004, the Singapore government finally let chewing gum appear on the market again. However, even so, people must register their names and ID cards before buying chewing gum, and the types of chewing gum they can choose are limited.
3, the United States, northern Europe: clever recycling
Cartoon targets for recycling chewing gum have been specially set up in subway stations in new york, USA and public places in some Nordic countries. People can throw the finished chewing gum at the target, and the winner will have a small reward. The missing gum will fall directly into the recycling bin below the target.
4. Ireland: Pay chewing gum tax.
In 2003, Ireland revealed in a report on garbage that the annual cost of garbage removal reached 70 million euros, and the cost of chewing gum accounted for 30% of all costs. Therefore, the new law promulgated by the government stipulates that people who chew gum should pay 10% chewing gum tax, which is equivalent to paying 5 Euro cents for a pack of chewing gum. The total chewing gum tax is between 4 million euros and 5 million euros every year.
References:
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