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».
As there are different types of anxiety, there are a number of different symptoms, however the most common include: 1  dizziness and feeling light headed. 2  reduced attention span. 3  breathlessness. 4  restlessness. 5  irritability. 6  difficulty in concentrating. 7  loss of sexual interest.