Kali Phos is present in the cells of the brain, nerves, muscles, blood (corpuscles and plasma), and intercellular fluids. A disturbance in the motions of its molecules produces despondency, (low, sad feeling) anxiety, fearfulness, tearfulness, home-sickness, suspiciousness, weak memory. Small and frequent pulse, later retarded. Pains with sensation of paralysis. Weakness of muscles and nerves even to paralysis.