Long incubation period:
After the unhealthy lifestyle is formed, it usually takes a long time to have an impact on health and produce obvious pathogenic effects.
For example, most lung cancer patients have been smoking for 10 years, or even decades. The relationship between unhealthy lifestyles and diseases is not easy to determine, and people generally do not pay enough attention to it, so it is easy to relax their vigilance, so it is very difficult to change. On the other hand, the occurrence of pathogenic effects takes a long time, which provides an opportunity for timely intervention and blocking its harmful effects.
Poor specificity:
There is no clear correspondence between unhealthy lifestyle and diseases, that is, a behavior may be related to many health problems, such as smoking may be related to lung cancer, hypertension, coronary heart disease, chronic obstructive pulmonary disease and so on. In addition, a disease may also be related to a variety of behaviors, such as high blood pressure and smoking, high-salt diet, lack of exercise and other unhealthy lifestyles.
Strong synergy:
A variety of bad behaviors exist at the same time, and the effects of various factors on the body are not simply superimposed, but mutually reinforcing. This synergistic effect will eventually produce more harm than the sum of the individual effects of each factor. The combined effect of unhealthy lifestyle and many factors can greatly increase its pathogenic effect.