In recent years, more and more people are going to the gym, some of them for slimming and weight loss; some for physical fitness; some for leisure and entertainment, in short, for health to the end. Nowadays, the fitness market is in demand and supply, but the gym itself has some invisible and unseen health hazards, but the fitness people are unaware of …… One of the hidden hazards, building pollution With the increase in demand, gyms are springing up, one after the other. In fact, new gyms will have a certain degree of building pollution, such as ammonia, radioactive radon pollution and formaldehyde and benzene pollution caused by decoration and indoor furniture. Ammonia mainly comes from concrete antifreeze; radon exists in building cement, slag bricks and decorative stone as well as soil, and the main harm to human body is to cause lung cancer. Formaldehyde mainly comes from various kinds of boards, such as artificial boards. Benzene mainly exists in paints, glues and various interior wall paints, which can also cause cancer or blood diseases. The second hidden danger, noise pollution In the gym, follow the trainer, in the rhythm of the music exercise, for many people is a happy thing, but few people know that although the music is the key to mobilize the mood in the gym, but if you do not control the volume, it will also become a killer of everyone’s hearing. It is also a kind of noise pollution. Long-term exposure to noise can cause endocrine, sympathetic nerves and other tissue and organ dysfunction, which can lead to increased adrenal secretion in the body, resulting in vasoconstriction, increased blood pressure, accelerated heart rate, headache and forgetfulness, reduced attention span, weakened digestion, physical and mental decline and a series of uncomfortable symptoms. In addition, noise will accelerate the aging of the heart muscle, increasing the incidence of myocardial infarction. The national regulations of entertainment establishments shall not exceed 85 decibels of dynamic noise. The third hidden danger, air pollution Some gyms are small, with many members. As people exercise caused by the ground dust and clothes, shoes and socks, epidermal shedding and other indoor air pollution, these particles less than 5μm in diameter, can be inhaled into the human whistling system, and even deep into the lung cells. Respirable particulate matter may not only become a carrier of microorganisms, which itself contains toxic substances or other disease-causing, carcinogenic substances. In addition, indoor crowded, poor ventilation, can cause indoor carbon dioxide concentration, can make people produce nausea, headaches and other discomfort. Research has proved that the amount of carbon dioxide produced by different human activities is different, and is about 10 times more than that of stationary activities. Usually, the indoor carbon dioxide concentration generally does not exceed 0.15%, while the concentration of carbon dioxide in the gym exceeds 4 to 5 times the normal. In addition, the human body surface during exercise to discharge a large number of odor and microorganisms, can also cause indoor air pollution. Hidden dangers of the fourth, fitness equipment injuries People often hear that a gym in the event of injury. In fact, the personal injury caused by fitness equipment is mainly because many fitness equipment do not know the line, the first-time fitness is to the fitness equipment how to use, know nothing. Some clubs have coaches who provide guidance on equipment to members who have just joined, while some clubs do not have this service. In addition, the lack of protective measures for some sports equipment, fitness equipment placed unreasonably, such as fitness equipment in the use of fitness equipment, will be next to the other equipment interference, and therefore can lead to accidents. Hidden danger of five, fitness people’s health At present, the vast majority of fitness centers for membership cards, there is no strict medical examination of members, in addition to a few mega-gym requirements to provide medical fitness certificate, other gyms for members to register is almost fearless, all receive. In fact, fitness must be tailored to the individual, not everyone’s physical condition is suitable for fitness exercise. When recruiting members to a legitimate health club, applicants must produce a detailed health examination report to prove that they are allowed to exercise a large amount of fitness activities, once the applicant’s heart and lung function is not good, it is recommended that relatively static exercise; for too much fat, it is necessary to control the amount of exercise. In addition, some infectious disease patients to the gym fitness, may also affect the health of others. Hidden danger of six, fitness equipment health public fitness equipment susceptible to infectious diseases, should be regularly cleaned and disinfected, while many gyms fitness equipment health conditions are a bit alarming. According to health testing, many fitness equipment handles with pathogenic microorganisms 16,000 to 58,000, the most up to 200,000; pathogenic microorganisms are also a variety of species, such as Salmonella, Escherichia coli, Staphylococcus aureus, Streptococcus, Pseudomonas aeruginosa, Typhoid, hepatitis virus, Mycobacterium tuberculosis, influenza virus, Chlamydia trachomatis, dysentery bacillus and so on. It is understood that the disinfection of fitness equipment in many gyms is lacking, and it is even difficult to ensure the disinfection on the same day. Fitness equipment in the gym are common, due to the lack of cleaning and disinfection, it is easy to cause cross-contamination. Because of fitness instead of infectious diseases, it is more than worth the loss. Hidden danger of seven, fitness improper injury people to the gym fitness, rarely choose a fitness trainer to accompany it. The main reason for this, in addition to the limited fitness trainers in the gym, fitness trainers each time not less than a hundred dollars of costs become the crux. In fact, the work of fitness trainers is to point out how to use the correct fitness equipment, and according to the different physical qualities of members, help them choose the appropriate form of scientific fitness, so that not only can avoid consumers blind exercise caused by physical injury, once in the action of what happens, there will also be someone to protect from the side. Although there is a patrol coach in the gym, but the patrol coach is for the whole field, once the situation occurs, the patrol coach may be distracted and have no time to take care of. Therefore, the lack of coaches to guide, and the lack of experience in emergency measures, once the gym is difficult to get timely treatment of injuries. In short, the original purpose of fitness to the gym for health, but the current gym does have some safety hazards, fitness practitioners choose to exercise in the gym to pay attention to prevention. Health is not a trivial matter, do not take it lightly, if the fitness instead of “injury”, it is more than worth the loss.