When you make a habit of lying awake in bed at night, your brain starts working at about 1.6 million kilometers per hour. A secret military technique that helps a person fall asleep in just two minutes is often used in the US military.
This method was used in the US military, especially in times of war, to help soldiers fall asleep easily. The method was described in the 1981 book "Relax and Win: Championship Performance" published in 1981. However, after Joe.co.uk, a website with a large following, published the method, it started to attract attention.