As the temperature drops, the behavior of the leeches changes. When they are cold, our leeches become lethargic and "fall asleep", their activity decreases. This is especially true when storing medical leeches in a cool place and in a container with cold water. When warm, leeches move, swim, climb the walls of the vessel, and are active. In the winter season, the characteristic behavior of all medical leeches is that they descend to the bottom of the vessel, where many leeches crowd to warm each other, and the leech itself folds its body in the form of the letter "C".
This is the natural instinct of medical leeches. Under natural conditions, they hibernate at the bottom of the lake, buried in the ground, where the water does not freeze and fall asleep until spring comes. If you decide to use medical leeches for Hirudotherapy during the winter season, the leeches you have chosen for therapy must be active to stimulate blood flow. To do this, before you continue to put the medicinal leeches on your body, separate them in a jar of "useless" cool water - neither cold nor hot, and put them in a warm room for a while.
The heat activates the medical leech, making it active, ready for treatment. So, if it is winter and the temperatures are negative, follow these instructions to make sure that the Hirudo - Medicinal leeches are interested in blood and bites.