In the new training course, we will deal with protection against different types of parasites. You will be able to pass individual tests to determine your vulnerabilities and threats in your environment. Although we say that good borders protect against everything, few can boast of good borders. This is on the one hand, and on the other, working on immunity, we will move on to concrete actions from a common understanding of borders, we will see what the threats look like, and what protection is adequate against each type of threat. Adequate is sufficient protection, but not excessive.