Dad's weird trick sends baby to sleep in 15 seconds

American motivational speaker and author Daniel Eisenman usually makes a living on pumping people up, but instead he's now offering advice on how to send someone to sleep.

The new father posted a video to social media of him soothing his brand new baby girl Divina to sleep in under 15 seconds.

Mr Eisenman used the traditional Tibetan 'Om' chant, perhaps familiar to you from mediation or yoga classes, to quieten the screaming infant. In the video, she drops off to sleep almost immediately.

The clip has gone viral, getting more than 200,000 shares on Facebook.