https://www.google.com/maps/place/Clear+Chiropractic/@47.717945,-122.1880637,17z/data=!3m1!4b1!4m5!3m4!1s0x54900d8f2f542c1d:0xd1b31581a17e2ffc!8m2!3d47.717945!4d-122.185875Like a car or truck hits the rear of your vehicle, your body goes by a particularly fast and violent acceleration and deceleration, and all four in the phases described underneat