Hold each end of a light, silky scarf (at least 24 inches long) and loop it behind your neck. Raise both hands toward the ceiling. Let your head gently fall back into the scarf. Very slowly roll your head from one side to the other for 10 to 15 seconds. Then bring it up, wait for a count of five, and repeat the process. "You're putting light pressure on the Pillars of Heaven," Fuenmayor says, "and that relieves tension in the back of your neck."