The Parasympathetic Nervous System.

The parasympathetic nervous system undoes the effects of stress on humans, and brings about a relaxation response and restoration in the body. Some of these effects include:

  • decreased blood pressure
  • decreased heart rate and strength of contraction of the heart muscle
  • less oxygen demand, lessening workload on the heart
  • decreased rate of breathing
  • increased lung capacity
  • better digestion
  • increased hemoglobin (ability of blood to carry oxygen)
  • feelings of calm and tranquility
  • healthy immune system