Types of barrier methods of contraception under barrier methods are meant vaginal contraceptives that create a barrier to the movement of sperm into the uterine cavity. There are two types: chemical and mechanical means.
Often, mechanical preparations are used to protect against unwanted conception. These include neck caps, diaphragms, and condoms. The mechanism of action is based on the installation of a barrier that prevents the movement of the sperm into the uterus and further along the fallopian tubes. Continue reading
Signs and methods of treatment of nicotine addiction nicotine addiction is caused by a psychological attraction to Smoking tobacco. This disease is a serious danger for the population, as it contributes to the development of a number of chronic diseases: bronchopulmonary, cardiovascular, malignant neoplasms, etc.If independent attempts to give up Smoking have not been successful, and the decision remains firm, then you should contact a narcologist or psychotherapist.
The following signs indicate a high degree of dependence on nicotine:
Smoking more than 20 cigarettes a day; Continue reading