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There's a song that's so relaxing that drivers are actually being warned not to listen to it while behind the wheel.

Said to be the most calming song ever, the eight-minute piece of music has been found to reduce blood pressure, slow the heart rate and also decrease levels of cortisol, aka the stress hormone.

And it can even make people so relaxed they become drowsy - which is why it shouldn't be listened to while driving.

According to Dr. David Lewis-Hodgson of Mindlab International, which conducted the research, the top song produced a greater state of relaxation than any other music tested to date.

In fact, listening to that one song -- "Weightless" -- resulted in a striking 65% reduction in participants' overall anxiety, and a 35% reduction in their usual physiological resting rates.

That is remarkable.

Listen to the song:

Source: LADBible