Since everyone knows that sedentary is not good, the question is, how long will sedentary last? Now not only office workers, but also students are sedentary. Under normal circumstances, if you sit for more than three hours in a row, it can be counted as sedentary. Sitting there often without exercise leads to the decline of human immunity and the blood circulation of lower limbs is easily blocked. Sitting for a long time can make people feel numb in their legs, which is caused by poor blood circulation. In addition, people who often sit for a long time due to lack of exercise tend to get fat and increase the chance of getting sick. Therefore, people should pay attention to the combination of work and rest in their work and study, and do not sit for a long time. ?
The hazards of sedentary lifestyle are as follows: Diabetes, obesity and sedentary lifestyle are also risk factors for diabetes. ? A study in the American Journal of Preventive Medicine shows that women who sit for more than seven hours a day have a higher risk of developing type 2 diabetes. Not only that, if you have diabetes, the longer the patient sits, the higher the insulin level in the body. There will be "insulin resistance" in obese patients, and the human body mainly relies on insulin to lower blood sugar. Sedentary is easy to get prostatitis. ?
When people sit for a long time, due to local compression of the prostate, poor blood circulation and accumulation of metabolites, the prostate gland tube is blocked and glandular fluid cannot be discharged smoothly, leading to chronic congestion of the prostate, which in turn leads to prostatitis. In order to confirm the effect of sedentary on heart disease, American researchers analyzed 2000 adults and found that the burden of coronary artery calcification increased by 14% every hour of sedentary. And this effect has nothing to do with other related factors. ?
In short, even exercise will not eliminate the harm caused by sitting for a long time. When coronary artery calcification reaches a certain level, it will cause vascular stenosis and induce coronary heart disease. In addition, if middle-aged and elderly people suffer from arteriosclerosis, there is also the risk of cerebral thrombosis and myocardial infarction. This is a special reminder to those who like to sit on the sofa and watch TV: it may be more dangerous to sit and watch TV all the time than to sit and work. Office workers who have to sit for a long time every day may have other health habits to reduce the harm of sedentary, such as regular exercise. ?
Moreover, if a person has a lot of leisure time, but it is basically used to watch TV, most of the overall hygiene habits are not good, and other problems are likely to occur. Some scholars conducted a prospective cohort study on the relationship between TV watching time and type 2 diabetes in adults in China. They found that every hour of watching TV every day increased the risk of diabetes by 9.2%.
If you sit and watch TV for more than 4 hours every day, excluding some common mixed reasons, such as age and body mass index, the risk of diabetes is about 1 .5 times that of people who watch TV within1hour. The harm of sedentary comes from too little exercise and the time of activity is not up to standard. Lying down is nothing more than changing your posture and not moving for a long time. The same amount of exercise is small, and it is also unhealthy. ?