Bell's rings of Russia
Ring of Bells was always accompanied by life. Since ancient times, they were not only familiar stages of church services, but are also familiar holidays, warning of epidemics and the invasion of the enemy.
The research of modern scientists have shown, that the vibrations from the bell's ringing tune the frequency of the body, help to balance the natural infrasound all internal organs.
A confirmation of this fact is a simple statistics: ringers rarely get sick. :-)