1, the best time to brush your teeth: 3 minutes after meals is the best time to rinse your mouth and brush your teeth. Because oral bacteria begin to decompose food residues at this time, the acidic substances produced by them are easy to corrode and dissolve enamel and damage teeth.

2, the best time to drink tea: The best time to drink tea for health is after eating 1 hour. Many people like to drink hot tea immediately after meals, which is very unscientific. Because tannic acid in tea can combine with iron in food to form insoluble iron salt, which interferes with the absorption of iron by human body and can induce anemia over time.

3, the best time to drink milk: Because milk is rich in calcium, middle-aged and elderly people (elderly food) drink before going to bed, which can make up for the low blood calcium (calcium food) at night and protect bones. At the same time, milk has hypnotic effect.

4. The best time to eat fruit: The best time to eat fruit is before meals 1 hour. Because fruit belongs to raw food, eating cooked food after eating raw food will not increase the number of white blood cells in the body, which is conducive to protecting the human immune system.

5. The best time for sunbathing: 8 am to 10, and 4 pm to 7 pm is the best time for sunbathing. At this time, the sunlight is mainly the beneficial ultraviolet A beam, which can make the human body produce vitamin D, thus enhancing the anti-tuberculosis and osteoporosis prevention ability of the human immune system and reducing the incidence of arteriosclerosis.