set of 5 tuning forks based upon four different types of brain waves namely: delta theta alpha and beta. Plus one fundamental brain tuning fork. these brain waves are connected to different activities of the human brain: - beta waves: thinking concentration arousal cognition. - alpha waves: relaxation (while awake) pre-sleep and pre-waking drowsiness. - theta waves: rem sleep dreaming deep meditation. - delta waves: deep sleep (dreamless) loss of body awareness. when the fundamental brain tuning fork is sounded with any of the 4 brain tuning forks (one at each ear) the difference between the two tuning forks creates a binaural beat which can be heard/percieved as a pulsation. the difference between the two frequencies must be small for the effect to occur; otherwise the two tones will be heard separately and no beat will be perceived. binaural beats reportedly influence the brain in subtle ways through the entrainment of the brainwaves and can be used to induce relaxation and other health benefits such as pain relief. about the product length of the forks: 21 cm each tuned within a ±025% deviation margin comes in a blue velvet pouch size 29x24cm weighted tuning forks these forks work more on the physical level. one can feel the vibration more strongly and at a deeper level when its stem is placed on the body. This is due to the weights at the end of each prong. the sound lasts longer but is softer and more diffused. they are heavier in weight. they are shorter in length than the same fork in unweighted type. these are excellent to use for pain relief reducing inflammation and inducing relaxation. they are normally placed on the body or by the ears. to tone them one can simply tap them on the palm of the hand or use the tuning fork activator. the weighted tuning fork has round weight at the end of each prong. unweighted tuning forks these forks work more delicately on a subtle level. they move in a physically lesser motion. The feeling of the vibration is more subtle when its stem is placed on the body. the sound does not last as long but is sharper and more crystallised. they are lighter in weight. they are longer in length than the same fork in weighted type. these are excellent to use for mental and emotional balance improving the energy field improving physical health and promoting spiritual uplifting helping to create inner harmony and wholeness. these forks are placed around the body or by the ears. to tone them one could gently tap two forks together or strike them on the tuning fork activator. the unweighted ends are straight.
