Any stressor (real or imagined) sends a signal to the hypothalamus, which stimulates the sympathetic nervous system. The short-term changes in our body help us to perform effectively. For instance, in order that the muscles may work adequately, the liver is triggered to release sugar, cholesterol and fatty acids into the blood stream The heart pumps faster in order to get the oxygenated blood to where it is most needed. The blood pressure rises.
Think what happens to you when confronted with a stressful situation. Short-term symptoms may include sweaty palms, palpitations, and rapid breathing. However, the adrenaline, which is produced by your body to deal with stress, can produce long-term negative effects, affecting digestion, reproduction and the immune system.
The important questions to ask yourself are: