Many people prefer to use it before breakfast and at night to assist deep sleep.
Hard floor with a carpet is best 2. Feet should hang past the ankle rests just enough so they will flop gently back and forth once machine is turned on. Arms loosely at your sides, palms down. Do not use a pillow under your head, as this hinders the machine's motion from reaching your head. People with severe knee problems may need to place a rolled towel under their knees-although it's best not to do so, if possible.