Fatigue is defined as a lack of physical, mental and emotional energy, while chronic fatigue is a long-term lack of energy. However, living in modern Western society, you hardly need a definition of fatigue. Most likely, you are already quite familiar with this problem. And, it is likely that you are currently experiencing chronic fatigue. Despite the fact that fatigue is widespread in modern life, from the point of view of nature as a whole, it is a true phenomenon. First of all, because nature abounds in energy and creative activity. Birds wake up early in the morning, they sing, tirelessly build nests, get food for their chicks; squirrels scurry up and down the trees, jumping from branch to branch; and when spring comes, it seems as if the grass and flowers are about to burst out of the ground and stretch upward in abundance, full of vitality.