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».
Symptoms. All anxiety disorders share some general symptoms: Panic, fear, and uneasiness; Sleep problems; Not being able to stay calm and still; Cold, sweaty, numb or tingling hands or feet; Shortness of breath; Heart palpitations; Dry mouth; Nausea; Tense muscles; Dizziness; Causes. Researchers donât know exactly what brings on anxiety disorders.