Video of waterfall in Ireland, which on YouTube has over six million views, helping millions of people who suffer from insomnia.

This clip takes eight hours and is used by many of London’s hospitals as part of medical research.

Artist Johnny Lawson set footage wooden bridge on the River Bonet in the county Leitrim, five years ago, and was very surprised when get attract from a specific group of fans.

Health psychologist Dorothy Wade, who works at London’s University Hospital, said that the aim of clinical research that uses this video River Bonet, to prevent the intensive care patients develop trauma.

As part of the therapy, the nurses are giving to patients tablets with different materials to relax, including a video of the waterfall, which proved to be very effective for calming.