The aim of our contribution is to briefly describe the health risks to people in the Czech Republic. It is necessary to realize that health concerns not only the human being but also the environment, it is the result of mutual relations between the organism, the psychic and the personality of the individual and the surrounding environment. Health is most damaging to smoking, poor nutrition, low physi- cal activity, excessive psychological stress, excessive alcohol consumption, drug abuse, risky sexual behavior. Demography is a doctrine of the population, it deals with dynamic and statistical indica- tors - population, migration, etc. The most important method is demographic statistics. Mortality or mortality is the ratio of the number of de...