Why is it uncomfortable to sit on the soft sofa for a while?

From a health point of view, sitting on a soft sofa for a long time is not a comfortable "enjoyment" and may be harmful to physical health. In recent years, experts who study human body mechanics have concluded in experiments that if the sofa is too soft, the support of the human body will lose stability, and users will often move their bodies intentionally or unintentionally to try their best to maintain the stability of the body, so sitting on a soft sofa for a long time will make people feel tired.

At the same time, when a person sits on a soft sofa, due to the action of gravity, the sofa loses its original shape, and then the waist of the human body bends accordingly. The lumbar bends for a long time, which may cause lumbar scoliosis or posterior protrusion. Patients with spinal diseases such as lumbar tuberculosis, vertebral injuries and herniated discs can aggravate their condition.

Sitting on a soft sofa for long periods of time can also lead to excessive fibrous tissue growth in local muscles, which can cause nerves, blood vessels or lymphatic vessels to be pinched and painful. In severe cases, it can also cause muscle atrophy. This is quite detrimental to the physical development of teenagers.

In addition, due to the softness of the sofa, it reduces the stimulation of the brain and also dulls the brain's response. Nowadays, the medical profession refers to a series of uncomfortable symptoms caused by sitting on soft sofas for a long time, such as decreased mental agility, mental fatigue, back pain, etc., collectively referred to as "sofa syndrome". For men, sitting on the couch for long periods of time may also affect sexual function.

Because the original sitting posture of human beings is based on the two nodules of the ischial bones as support points, when sitting on the soft sofa, the original fulcrum sinks, and the whole buttocks fall into the sofa, the filling and surface materials of the sofa will surround and compress the scrotum, and when the scrotum is compressed, the venous return is not smooth, the blood vessels near the testicles become thicker, and congestion occurs, which can lead to varicocele in severe cases, and the patient will have a heavy testicle and a dull pain in the lower abdomen. In the case of varicose veins, the harmful substances produced by testicular metabolism cannot be eliminated in time, and sufficient nutrients are not obtained, which will damage the normal secretion of male hormones by the testicles and reduce the secretion of testosterone. Testosterone, on the other hand, is the driving force for maintaining male sexual function and producing sperm, and once it is lacking, it will inevitably lead to sexual dysfunction and infertility.

Therefore, when choosing a sofa, you should pay attention not to focus on too soft, do not sit on a soft sofa for a long time, and if necessary, you can put a stiffer cushion on the sofa.

People with motion sickness will be dizzy and retching when sitting on a soft sofa, and the soft sofa is really uncomfortable, so it is better to sit on the floor.