Aspirin is a pharmaceutical drug often used to treat pain, fever, and inflammation. A drug is any substance (other than food that provides nutritional support) that, when inhaled, injected, smoked, consumed, absorbed via a patch on the skin, or dissolved under the tongue causes a physiological change in the body.
In a crisis, the sympathetic division of your autonomic nervous system (ANS) mobilizes your body for action, directing your adrenal glands to release the stress hormone epinephrine (adrenaline) and norepinephrine (noradrenaline). To provide energy, your liver pours extra sugar into your bloodstream.
What Is the Sympathetic Nervous System? While your brain, which is a vital part of the central nervous system, has the capability to control your conscious actions like walking, thinking and talking, your body also has an autonomic nervous system, which regulates your bodily functions, like the beating of your heart, your breathing, the way you digest your food, your sweating patterns, etc.