What are the disadvantages of cycling?

Riding a bicycle is relatively easy. As long as your balance is good enough, it is easy to learn to ride a bicycle. We all know that there are many benefits of riding a bicycle, but few of us know that there are many disadvantages of riding a bicycle, and all of them cause damage to our body. Next, let us understand what are the disadvantages of riding a bicycle? This way we can be more careful when doing this sport in the future.

The human body's third line of defense is mainly composed of immune organs and immune cells. The main immune organs include the thymus, spleen and lymph nodes, which play an important role in the occurrence, differentiation and maturation of lymphocytes. The spleen and lymph nodes also have the function of clearing out pathogens and other substances. Immune cells are mainly lymphocytes. When pathogens enter the human body, they stimulate lymphocytes, which then produce a special protein called antibodies to resist the pathogens. Substances that cause the human body to produce antibodies are called antigens. Certain antibodies can bind to certain antigens, thereby promoting the phagocytosis of white blood cells and eliminating the antigens; or making pathogens lose their pathogenicity. After the antigens are cleared, antibodies remain in the body. When the same antigen invades the human body again, it will be quickly eliminated by the antibodies remaining in the body in the same way.

Massaging the groin has the effect of nourishing the kidneys.

The occurrence of this problem is closely related to the bicycle seat. A common bicycle seat has a protruding oval in the front, which is just clamped by the groin of the two legs. This can easily cause the body weight to move forward to this part and compress the genitals. NIOSH's tests have shown that if a bicycle seat with no protrusion at the front is used, the pressure exerted while riding will be 71 grams, which will not cause any harm to the body.

In addition, the height of the bicycle handlebars should also be adjusted appropriately. If the handlebars are low and the seat is high, people will naturally lean forward when riding, with their body weight concentrated on the perineum.

It can be seen from this that we must pay attention to the above problems when riding a bicycle, consciously and constantly change our sitting posture and angle, or get up from the seat and pedal forward from time to time to allow the groin to be relieved and rested. Of course, what we are most looking forward to is that some businesses can develop bicycle seats that are beneficial to health. Just imagine what a huge business opportunity this would be! At present, new bicycle seats are available in the market in the United States. I hope that my motherland, China, will also give birth to innovative and health-care bicycle seats as soon as possible to benefit the general public.

Riding a bicycle to work is indeed beneficial to environmental protection, but unfortunately, the cyclists themselves unfortunately become victims of car exhaust. Scholars from the University of London found through research that people who ride bicycles to work in cities have increased burdens on their lungs and hearts. This result was published at the European Respiratory Society last year. When riding a bicycle, the intensity and frequency of breathing will increase, so more air will be inhaled into the lungs, which is 2-3 times higher than when riding in a car. However, the large amount of automobile exhaust emitted in cities contains a lot of harmful gases. As a result, experts have issued a warning: "Riding a bicycle in a city with mixed traffic is equivalent to breathing harmful gases while working in a mine."

Cycling causes osteoporosis

Cyclists are prone to fractures, which attracted widespread attention in 2009 because in that year, two world-famous American cyclists suffered multiple fractures of the clavicle and spine. After checking with sophisticated instruments, it was found that the bone density in their bodies was low. Further expansion of the examination group proved that the longer the cyclists rode, the lower their bone density. The bone density of backbone athletes was 20% lower than that of normal people, which is equivalent to the level of osteoporosis in the elderly.

The disadvantages of cycling are listed above one by one. If we ride a bicycle less frequently and for a shorter period of time, such consequences will not occur. Although the disadvantages exist, we should understand the benefits more. In this way, we will be more balanced when riding a bicycle and can use the bicycle better.