Butterflies use vibrations to hear whats around them, in a sense they are deaf. Butterfly Whole Body Vibration Platform Professional Body Contouring & Wellness System for Spas Fitness, aerobic exercise and yoga : BUTTERFLY Fitness Pad Portable Wireless Electric Butterfly Massager Full BodyWaist Vibrating Slimming Muscle Pain Relief Massage Pad Device Buy cheaply on Joom Portable Mini Massager Machine for Body Pain Relief, Butterfly Massager Gel Pads Stick, EMS Massager, Wireless Vibrating Massager for Shoulder, Legs, Neck, Back (Multi) If your body feels like its "vibrating" at 10 PM, your nervous system is just over stimulated . This somatic hack + a year of the Tillmans 4:2:1 ratio is how I finally reclaimed my peace. 12 months