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».
Anxiety symptoms may be different based on the particular condition or disorder, but common symptoms include: 1  Excessive, irrational, or uncontrollable feelings of worry and dread. 2  Sensations of panic and uneasiness for no apparent reason. 3  Obsessive thoughts. 4  Ritualistic behavior. 5  Trouble sleeping. 6  Heart palpitations.