Global biogeochemical cycles are critical to life, most notably those of water, oxygen, carbon, nitrogen and phosphorus. 1  The nitrogen cycle is the transformation of nitrogen and nitrogen-containing compounds in nature. 2  The water cycle, is the continuous movement of water on, above, and below the surface of the Earth.
Blunted affect refers to a reduction in the intensity of an individual's emotional response. The emotional response of an individual with blunted affect is a lot weaker than one would expect in similar circumstances.
A flat affect is the loss or lack of emotional responses to a situation or event that would typically elicit emotion. People with flat affect may appear to be completely unemotional or apathetic. Other associated symptoms include speaking in a monotone voice and a reduction in facial expressions.