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2. Paroxysmal sympathetic hyperactivity - Wikipedia

   en.wikipedia.org/wiki/Paroxysmal_sympathetic...

   Paroxysmal sympathetic hyperactivity (PSH) is a syndrome that causes episodes of increased activity of the sympathetic nervous system. Hyperactivity of the sympathetic nervous system can manifest as increased heart rate, increased respiration, increased blood pressure, diaphoresis , and hyperthermia . [ 1 ]

3. Biology of depression - Wikipedia

   en.wikipedia.org/wiki/Biology_of_depression

   Exposure to light also targets the serotonergic system, providing more support for the important role this system may play in depression. [27] Sleep deprivation and light therapy both target the same brain neurotransmitter system and brain areas as antidepressant drugs, and are now used clinically to treat depression. [ 28 ]

4. Tripartite Model of Anxiety and Depression - Wikipedia

   en.wikipedia.org/wiki/Tripartite_Model_of...

   Physiological hyperarousal is defined by increased activity in the sympathetic nervous system, in response to threat. [11] Physiological hyperarousal is unique to anxiety disorders. [2] [12] Some symptoms of physiological hyperarousal include: shortness of breath, feeling dizzy or lightheaded, dry mouth, trembling or shaking, and sweaty palms ...

5. Acute stress reaction - Wikipedia

   en.wikipedia.org/wiki/Acute_stress_reaction

   These two subunits are the sympathetic nervous system and the parasympathetic nervous system. The sympathetic response is colloquially known as the "fight-or-flight response," indicated by accelerated pulse and respiration rates, pupil dilation, and a general feeling of anxiety and hyper-awareness. This is caused by the release of epinephrine ...

6. Doctors Explain What It Means When You Have Chills But No Fever

   www.aol.com/9-reasons-might-chills-no-210200160.html

   One of those things it activates is the sympathetic nervous system, resulting in symptoms like chills, sweating, heart palpitations, and blurred vision. Your primary care doctor can check your ...

7. Serotonin syndrome - Wikipedia

   en.wikipedia.org/wiki/Serotonin_syndrome

   Serotonin syndrome (SS) is a group of symptoms that may occur with the use of certain serotonergic medications or drugs. [1] The symptoms can range from mild to severe, and are potentially fatal. [4] [5] [2] Symptoms in mild cases include high blood pressure and a fast heart rate; usually without a fever. [2]