You?ve tried the shush, the swaddle, the soother and the stroller, and all the other various S?s to get your inconsolable newborn to settle down, but nothing seems to work. Now scientists are saying there?s a quick fix for a crying baby that?s much, much easier than you think. 
A new study published in Current Biology presents a method for soothing crying babies to sleep and ? equally important ? ensuring they stay asleep once you put them down.
The “walk then sit” method
The process, which can be applied to both naps and bedtimes, is astonishingly simple ? and cost-effective! The steps are:

Holding your crying baby in your arms, walk them around for five minutes to soothe them into sleep.
Sit down and hold your sleeping baby for another five-to-eight minutes. Put your baby in the crib.

That?s it. That?s the method.
The rationale
The inspiration behind the first step, the carrying part, comes straight from the wild. Picture in your head a mother lion carrying her baby in her mouth. The relaxed posture and docile nature of the lion cub is the result of something called the ?transport response,? a calming effect that comes from being carried. Transport response, which occurs in many altricial mammals ? that is, mammals whose young are born in that underdeveloped ?fourth trimester? stage ? is associated with a reduction in heart rate and voluntary movement. 
Principal investigator Kumi Kuroda and her fellow researchers at the RIKEN Center for Brain Science in...