As telegraph.co.uk reports, Lyz Cooper, founder of the British Academy of Sound Therapy said the length of the song is significant, and that sound therapy has been used for “thousands of years to help people relax and improve health and well-being”.

She explained: “It contains a sustaining rhythm that starts at 60 beats per minute and gradually slows to around 50. While listening, your heart rate gradually comes to match that beat.

“It is important that the song is eight minutes long because it takes about five minutes for this process, known as entrainment, to occur.”

She added that the intervals between notes had been specifically chosen to “create a feeling of euphoria and comfort” and that the lack of a repetitive melody allows the listener to switch off, rather than consciously engage with the tune.

Cooper said the “low, whooshing sounds and hums”, reminiscent of Buddhist chanting, helped induce a “trance-like state.”

This song is scientifically proven to help you relax