The dangers of smoking are well known and can be considered the first killer of health. In fact, even if you do not smoke, some of the unhealthy habits in life caused by the harm is no less than smoking. But, you know 6 bad habits comparable to smoking? 1, a sitting all day. Sitting in the office or car for a long time will bring a variety of health diseases, even if regular exercise can not offset the harm of sedentary. A new study by the Alberta Health Services and Cancer Care Centre in Canada found that nearly 160,000 cases of breast, colon, prostate and lung cancer occur each year and are related to lack of exercise, but only 2/3 of them are caused by smoking. Suggestion: you should get up and walk around regularly at work, and you should move your body more at home. 2, with a gas stove does not open the hood. The United States “Environmental Health Perspectives” magazine published a new study found that poor ventilation when using gas stoves can lead to serious indoor carbon monoxide, nitrogen dioxide and formaldehyde exceeded. These three pollutants are extremely common in secondhand smoke. Suggestions: regardless of frying and steaming, as long as the use of gas cookers, should open the hood, which can reduce pollution by 60% to 90%. 3, eat too much meat. Animal protein contains IGF-1, a growth hormone that promotes the growth of tumor cells, and a new study by the University of Southern California published in the American Journal of Cell Metabolism found that people who consume a lot of animal protein in middle age will have a cancer death rate four times higher than their peers, but there will be no harm for people over 65 years old. Suggestion: Replace some animal proteins with plant proteins such as legumes. Middle-aged people should be supplemented with protein by body weight every day, 0.8 grams for every 2 pounds (0.9 kg). 4, high-temperature fried food. A number of studies have shown that the high temperature of cooking oil will produce acrolein and a large number of polycyclic aromatic hydrocarbon compounds. Such carcinogens are also present in cigarettes and can easily lead to inflammation of the respiratory tract. Suggestion: use more olive oil and avoid high oil temperatures when cooking. 5. Indoor tanning. A study published in the Journal of the American Medical Association found that indoor tanning causes 420,000 cases of skin cancer in the United States each year, while smoking causes only 226,000 cases of lung cancer. A study published in the Journal of Evolution and Human Behavior suggests that eating more carrots and tomatoes can help keep your skin naturally beautiful. 6, long-term lack of sleep. Chronic sleep deprivation can easily lead to high blood pressure, heart disease, stroke, obesity and other health problems. Studies have found that sleep deprivation of 6 to 7 hours per night leads to an increase in mortality rate comparable to that of smoking. In addition, lack of deep sleep and circadian rhythm disorders can also accelerate the growth of tumors. Recommendation: Ensuring adequate sleep for 7 to 8 hours a day is essential for good health.