Importance of chemo signals?

Chemo signals, including those discussed as "chemo sensory signaling" between humans, play a crucial role in how individuals interact and influence each other's physiology and behavior. For instance, humans emit specific odors in states of fear, which can affect the behaviors of others around them. This phenomenon, often referred back to as the "smell of fear," is a prime example of how human chemo signals function. The importance of these signals lies in their ability to communicate emotional and physical states which, in turn, can trigger corresponding responses in others 1 .