How to use the 4-7-8 technique to fall asleep in minutes

One scientist -Dr Andrew Weill- claims he has a way of getting insomniacs to slip into a slumber in just 60 seconds – and it doesn't involve prescription drugs or strange lighting.
Dubbed the 4-7-8 breathing technique, the method is described as a 'natural tranquilizer for the nervous system' helping to reduce tension in the body to relax.