Women, who have problems with thyroid, often tries to get a curing, unpolished natural amber necklace. Amber beads, when they are near the skin, accumulates the electrostatic charge and in the oxidized surface there is the biggest quantity of amber acid. In medicine, volatile amber acid is used - which positively affects the respiratory system, stimulates nerve system, stimulates the processes of reproduction and affects the heart and kidney in a good way.