Adults generally have 28 teeth. Brushing is to remove dental plaque, soft dirt and food residue on the outside, inside and occlusal surface of teeth. The job of brushing teeth seems simple, but in fact it is a lot of work. About 80 tooth surfaces need cleaning. Always change the position of the toothbrush and turn it slowly on all the tooth surfaces of each tooth. Because a toothbrush can only brush 2-3 teeth at a time, it takes 3 minutes to brush all the teeth at a time.

Careful brushing can not only prevent dental caries and periodontal disease, but also massage gums by brushing teeth, promote blood circulation and enhance the degree of keratinization of gingival epithelial tissue. For successful men, brushing your teeth for 3 minutes every day can also keep you away from bad breath.

"Health care for seven or three minutes"

2. Boil the water for another 3 minutes.

As we all know, tap water is domestic water for disinfection in waterworks. All disinfection components contain chlorine, which will react with the residual organic matter in water to generate harmful compounds such as halogenated hydrocarbons and chloroform, which have carcinogenic effects. Practice has proved that boiling water and burning for 3 minutes is a good way to reduce these harmful substances to a safe range. It can be seen that this measure is necessary for people to prevent cancer every day.

3. Make tea with boiling water for 3 minutes.

Tea contains nerve-stimulating caffeine, which is very suitable for people who need to refresh themselves during the day. But if you drink tea before going to bed, you can rest assured as long as you pour out the first sip of tea within 3 minutes and then brew and taste it.