Stress is not just a feeling. It is a physiological response that affects the entire body.
When stress is activated, the nervous system shifts into survival mode. Heart rate increases. Digestion slows. Muscles tense. Attention narrows.
This response is helpful in short bursts. When stress becomes constant, the body remains on high alert.
Over time, this affects sleep, immunity, mood, and energy levels.
Stress is not harmless. It leaves biological footprints.