In daily life, many students do not rest when they should rest, and often stay up late. As we all know, sleep has a very important physiological significance, which can enhance immunity, restore the body, promote growth and development, delay aging, and be beneficial to skin beauty. Some dormitories watch movies, lie down until late at night, and then skip class and sleep the next morning. In the long run, it will cause a vicious circle, and our studies and health will not be guaranteed.

(B) unscientific diet

At present, quite a few college students are in class because they sleep late and get up late in the morning, so they have no time to eat breakfast. When they are hungry during recess, they buy some snacks such as biscuits and instant noodles to satisfy their hunger. Some college students simply cancel breakfast, forming a bad habit of not eating breakfast all the year round; There are also boys who drink and overeat, which violates the normal eating rules. College students are in a critical period of growth, and the balance between nutrition and diet is particularly important. Sugar, vitamins, water, minerals and other essential nutrients need to be supplemented and absorbed in our daily diet. Science shows that the amount of drinking water per person per day is 1.200 ~ 1.600 ml, which has the physiological functions of promoting the digestion and absorption of nutrients and excreting metabolites and toxins, and has special effects on health, such as sedation.

(3) Entertainment and leisure are unrestrained

Appropriate leisure and entertainment can add interest to college students' lives and relieve stress. However, some students often patronize Internet cafes, KTV, video rooms, video game rooms and other places of entertainment and indulge in them.

(D) poor awareness of self-care

As we all know, physical exercise can enhance physical fitness, cultivate sentiment and increase vitality. However, with the rise of online games and e-sports in recent years, the total number of students participating in cultural and sports activities has dropped significantly. The long-term decline in students' physique, the obvious increase in the proportion of obese students, the high incidence of myopia, the low psychological quality of most college students and their poor ability to resist setbacks are all related to the lack of physical exercise. Some male students not only don't pay attention to their hygiene habits, but also often smoke in the dormitory, which makes other students forced to smoke second-hand smoke, which affects their physical and mental health.

There are many worrying phenomena in the living habits of contemporary college students, which are related to the change of social environment, the rigidity of educational model and the imperfection of educational system. The main reasons are as follows:

The educational environment is diverse and complicated.

With the development of society, multiculturalism affects the growth of college students. Many unhealthy and inactive lifestyles invade college students' lives, such as extravagance and waste, internet addiction and alcoholism. , leading to absenteeism, being late and leaving early. Students play games in Internet cafes and dormitories all night, sending text messages, answering phones and playing mobile games during class hours, which has a negative impact on normal study, life and teaching.

(B) the general imbalance in family education

Family education plays a key role in the growth of students. Due to the long-term influence of exam-oriented education, most parents pay more attention to their children's studies and lack the necessary care and guidance for the development of their comprehensive quality. In order to let their children study with peace of mind, many parents take care of almost everything except study, even the basic trivial things of life such as washing clothes and folding quilts. The excessive "doting" of these families has a great negative effect on university education, which deserves parents' deep thinking.

(C) lax self-requirements, easy to meet

After entering the university, many college students often only take graduation as their goal, but lack comprehensive consideration and planning on how to become high-quality talents that meet the requirements of the times. Some students have the idea of muddling along and lack the vitality that young people should have.

Then, as a college student, how should we correct the above bad habits?

First of all, we should arrange the work and rest time reasonably and form a regular work and rest system. Going to bed early, getting up early and refreshing, and going to bed late can suppress the cerebral cortex for too long. Over time, it will cause a certain degree of artificial brain dysfunction, leading to a decline in understanding and memory, but also reduce immune function, disrupt the biological rhythm of the body, make people lazy and inert, and at the same time, it is not good for muscles, joints and urinary system.

Taking a rest at noon, being full of energy and taking a proper nap are very beneficial to reducing physical and mental fatigue and improving the efficiency of study and work. A nap is not about the length of time, but about the quality. It is recommended to lie flat on the bed and stretch your limbs to circulate blood to the brain to relieve fatigue caused by insufficient blood supply to the brain. Research shows that a regular life can make the excitement and inhibition of the brain and nervous system alternate and promote physical and mental health.

Secondly, carry out appropriate physical exercise and recreational activities. Taking part in some cultural and sports activities after studying can not only relax the intense study life, but also increase the fun of life. Because exercise improves the heart and lung function, it makes the nutrient oxygen in the blood transport faster, more and more fully, especially aerobic exercise can make people younger. During physical activity, brain cells related to muscle movement are in a state of excitement, which makes the management thinking part of the cerebral cortex rest and is conducive to relieving mental fatigue. Exercise can also exercise the nervous system's endurance to fatigue and adaptability to the external environment. Improve the activity ability of cerebral cortex cells and make people more energetic. Proper exercise every day can also promote a good sleep, improve the body's immune function, strengthen the muscles and functions of myocardium, and speed up blood flow, thus greatly improving the blood circulation of the brain, heart itself and the whole body, promoting the function of digestive organs, speeding up metabolism, making the body strong and energetic, thus reducing the occurrence of chronic diseases such as neurasthenia.

Finally, we should arrange our diet reasonably and develop good eating habits. Nutritionists' research shows that eating a full breakfast and eating well can maintain blood sugar levels. The overall balance is to eat everything, not picky eaters, not partial eclipse. Being too fat or too thin is not good for your health. The viewpoint of "not having enough to eat" is put forward by previous health care experience, and its purpose is to make the diet moderate, the hunger moderate, and the intake and consumption of nutrients such as heat energy and protein adapt to avoid obesity or emaciation. Three meals should be reasonable. It is necessary to establish a reasonable diet system, avoid overeating and advocate not eating or eating less snacks. In the heat energy distribution of three meals a day, breakfast accounts for 30% of the total heat energy of the whole day, lunch accounts for 40%, and dinner accounts for 30%. 1) diversified diet, eating coarse grains; (2) Eat regularly, don't overeat, eat more beans and nuts; (3) Eat more fresh vegetables and fruits; (4) limiting the intake of high-fat foods; (5) It is best to eat fish or chicken two or three times a week; (6) Eat at most one egg a day; (7) Control the intake of salt and food containing salt (sodium); (8) Appropriately increase the intake of dairy products; (9) Moderate drinking and weight control.

College students are the hope of the nation and the future of the country. Habit is a kind of hard work and good living habit, which can urge people to make progress and promote the healthy development of the body; Bad living habits delay yourself and harm others. Good living habits can not only promote personal physical and mental health, but also have a positive impact on our future development. Therefore, for our better development and progress, we contemporary college students should correct their bad living habits and strive to cultivate a healthy lifestyle.