Which type of non-verbal feedback might indicate that a stretch is being delivered too intensely?

Facial expression is a crucial type of non-verbal feedback, as it can reveal a person's immediate emotional and physical responses to a stretch. For instance, if an individual is experiencing discomfort or pain due to an overly intense stretch, their facial expressions may show signs of strain, such as grimacing or frowning. These expressions serve as immediate indicators, allowing instructors or practitioners to adjust the intensity of the stretch accordingly.

Loud breathing might be a response to exertion or effort, stretching the limbs could indicate engagement in the stretch rather than discomfort, and deep relaxation generally signifies that the stretch is appropriate and beneficial. In contrast, the subtleties of facial expressions can provide a more nuanced insight into how the body is reacting, almost acting as a silent communication method expressing the individual's limits.