Which practice is employed by Germans for preventing illness?

The practice employed by Germans for preventing illness is wearing an asafetida bag in winter. This tradition stems from historical beliefs about the protective qualities of asafetida, a resin obtained from the fermentation of certain plants. It was thought to ward off bad air and illnesses, particularly the colds and respiratory issues that commonly arise during the winter months.

Cleansing rituals, while prevalent in various cultures, are not specifically associated with German practices for illness prevention. Consuming herbal teas is a broader health practice found in many cultures, not exclusive to Germany. Sunbathing, while popular in various countries for its health benefits, is not traditionally linked to illness prevention in German culture as directly as the use of asafetida bags. Thus, the use of the asafetida bag is a unique and culturally specific approach to preventive health in Germany.