One of the scientific principles that I understand is why people eat

After eating, digested and absorbed, organic matter is transported by blood to various cells of the human body, and with the participation of oxygen, it is divided into energy by respiration to provide the energy needed for various life activities.

When my grandmother eats, she holds the bowl in her hand and eats one bite at a time with chopsticks. Grandma eats unhurriedly, and when she picks up vegetables, she eats them one by one. But grandma has a "bad problem", that is, others like to eat but don't clip, and others get tired of eating, so they start to eat the first bite of ......

Dad seems to have been hungry for a long time, the chopsticks are shaving the rice in large bites, and the chopsticks are holding the vegetables "in a big way", making a loud chewing sound in his mouth, and staring at the dishes on the plate.

My mother eats very gently, and when she eats, she eats with chopsticks and chews the vegetables carefully, which is very elegant.

Grandpa eats with a lot of character. Prepare a small glass of bayberry wine first, and always sip comfortably with each sip, and then take a bite of the dish to eat. I didn't start eating until I had finished drinking. When I was a child, I used to dip my chopsticks in my grandfather's wine and pretend to follow my grandfather's example.

When I eat, I first use chopsticks to put my favorite dishes into a bowl, and then use a spoon to scoop the food into my mouth, chew it, and swallow it in one bite. I think it's good that way.

Eating is also color-eating, eating to maintain one's own life, so that all living beings will choose to eat. Single-celled organisms also eat, not to mention us who are multicellular.

1.Kindergarten children eat snacks, which can help the movement of teeth and mouth, improve chewing ability, and can consume a certain amount of physical energy. However, it is necessary to pay attention to oral hygiene, otherwise it is easy to cause tooth decay.

2.Snacks for primary school students, especially during recess, can supplement a certain amount of physical fitness, and developed countries in the West have taken measures to solve the problem of recess meals for primary school students. This can improve students' physical fitness and academic performance.

However, it is necessary to pay attention to oral hygiene, otherwise it is easy to cause tooth decay.

3.Eating some snacks for the elderly can help their health, because the secretion of digestive enzymes in the elderly is reduced, so the absorption and digestion are much weaker, so eating more digested and nutritious foods will reduce the burden on the stomach. However, it is necessary to pay attention to oral hygiene, otherwise it is easy to cause tooth decay.

People have to eat every day, and through eating, they eat nutrients to sustain their lives. Essential nutrients can be divided into six categories: protein, carbohydrates, fats, inorganic salts and trace elements, vitamins, and water. Proteins, fats, and sugars all produce energy to sustain life, and energy is needed to carry out daily tasks.

Because if you don't eat, you can't maintain your body's functions.

No one can live without three meals a day, but some people eat casually, which is not good for their health. Here's a summary of the principles of scientific dining to see how much you can do.

1 Proper posture must be maintained. When eating, you should sit upright and do not pressure the stomach, so that the food bolus esophagus can enter the stomach faster.

2 Eat at your own pace. Don't eat with others at the speed of others, only by doing your own thing, the digestive system can play a role.

3 Do not eat when you are extremely hungry. Although the appetite is particularly strong when you are extremely hungry, the gastrointestinal digestive function has been impaired Eating too much at once will cause food stagnation, which is not conducive to digestion and absorption, affects nutrition, and will damage health. Start with a small amount of semi-liquid food, such as congee, noodles or rice noodles.

4 Eat your favorite food first. If you eat your favorite food first, emotional satisfaction will make you feel full more quickly, so you can avoid overeating.

5 Do not eat cold drinks at night. If you eat cold drinks after 7 p.m., it will accumulate in the body due to slow body fluid metabolism, reduce body temperature, and make it difficult to eliminate fatigue.

You have to eat every day, but how can you eat to be healthier?

Eat normally, have a little less dinner, and have a balanced nutrition.

Three meals a day should be eaten on time.