Why does an honest chair become a health killer?
The passivity of "sitting" is second only to that of "lying down", and the heat consumption of the sitting human body is minimized, which easily leads to metabolic imbalance. To many people's surprise, even eating an apple consumes more calories than "sticking" to a chair. On the other hand, "people mistakenly think that' sedentary' is equivalent to' no exercise'. In fact, if someone exercises in the gym for 30 to 45 minutes every day and still sits the rest of the time, their lifestyle is still sedentary. "
Sitting posture changes the natural shape of human spine, making muscles and bones more and more uncomfortable. The spine of a healthy person is naturally S-shaped, but the sitting posture pushes the waist back to the "C" shape, which makes the muscles of the back and abdomen that should support the body lose their functions. In the long run, the back muscles become weak, unable to support the spine effectively, and the pain inevitably strikes; When sitting, the knees bend 90 degrees, the tendons and gluteal flexors are always in compression, and the gluteal muscles are in tension, so that the limbs will no longer stretch freely, but the pain and injuries will be more frequent than before.
The waistline of a long-term "sitter" will gradually increase inadvertently after a long time. "Stand up" can only consume a few calories at a time, but as long as you insist on doing it several times a day, it can play an obvious role. Eating 30 to 50 calories a day is not difficult, but it is enough to prevent gaining 2 to 3 pounds a year. If you spend a lot of time sitting, your weight will come to you quietly.
"Sitting" not only does not put forward a positive physical test for the body, but forces it to enter a relaxed state, while "standing" can exercise the muscles of the back, shoulders and legs, carry out effective metabolism and adjust the position of the spine in time. Scientists advise people to leave their chairs for exercise as often as possible. Intermittent exercise or treadmill is a good choice. Another way is to "get into the habit of standing when answering the phone," Bedell said, "and constantly change the center of gravity by changing your feet. In this way, you also consume calories in the process of answering the phone. "