Stress, stressful, stressors, stress resistance, stress susceptibility, stress reaction, post-traumatic stress - there are many terms that try to facilitate an understanding of what stress actually is. It is often understood as a stimulus that increases our body's activity. But also as a reaction of the body. A distinction is made between physical and psychological stress. Finally, we talk about susceptibility or resistance to stress. Pronounced in all cases and used in many terms. What is stress? Is it a negative or positive feeling? Does it push you to act, to develop, or does it paralyse you, make you stagnate?