This process starts in the cellsâ cytoplasm and is completed in the mitochondria-the cellular powerhouse. In those tiny organelles, one molecule of glucose with 6 molecules of oxygen are changed into 36 molecules of ATP â the energy cells can use to get things done.
Symptoms of Severe anxiety. The list of signs and symptoms mentioned in various sources for Severe anxiety includes the 4 symptoms listed below: 1  Feeling of extreme uneasiness or apprehension. 2  Increased heart rate. 3  Sweating. 4  Unable to think clearly. 5  more information...Â».
Common signs and symptoms of anxiety include: 1  Nervousness. 2  Feelings of being powerless. 3  Feelings of impeding danger.  Increased heart 1  rate. Hyperventilation (heavy breathing) 2  Sweating. Trembling.  Weakness and 1  fatigue. Lack of concentration and focus other than the cause of  worry.