The sense of smell has the most powerful influence on our emotions compared to other senses and controls our behavior more than we realize. Neuroscientist, professor of anatomy at the University of Quebec at Trois-Rivières (Canada) Johannes Frasnelli clearly explains how smell training affects the human brain, how anxiety and depression change our sense of smell, how the loss of smell is connected with neurogenerative diseases, and also touches on a number of other interesting topics - not only from the field of neurobiology, anatomy and psychology, but also from the sphere of food preferences of residents of different countries, opening up to us the most interesting world of smells and sensations. “Despite the fact that we always smell - in fact, we perceive smells even before birth - and Despite the fact that the sense of smell has a direct “wired” connection with the limbic system, and therefore with our sensory world, most people consider smell to be the least important of the five senses. At the same time, a violation of the sense of smell not only reduces the quality of life, it can be the first symptom of various diseases. So increased attention to the sense of smell is quite justified. We can sensitize our sense of smell, even improve it, and in this way train our brain. The best thing is that we don’t need expensive equipment for this, we just have to pay more attention to our sense of smell and talk to each other about smells more often.” (Johannes Frasnelli)