Scientific Studies

Effectiveness proven by science:

The concept of Babhush is based on studies showing that white and rhythmic noises, such as the sound "shh," mimic the intrauterine environment, recreating a familiar and reassuring sound space for the baby.

https://www.lancastergeneralhealth.org/health-hub-home/motherhood/fourth-trimester/5-tips-and-tricks-for-calming-a-fussy-baby

https://cradlewise.com/blog/baby-sleep-sound/

During pregnancy, babies are exposed to many sounds: the pumping of their mother's blood, her rhythmic breathing, the rumbling of her digestive system, and even outside noises.

Research indicates that noises like the sound "shh" can influence a baby's heart rate and improve their sleep patterns. Babies, from birth, are naturally programmed to synchronize their physiological responses with external stimuli, such as regular, soothing sounds. It is this innate connection between rhythmic sounds and relaxation that makes "shh" a particularly effective tool for calming and soothing babies, thus promoting sleep, as it masks disruptive external noises and promotes a state of deep relaxation.

https://ichgcp.net/clinical-trials-registry/publications/89496-infant-crying-and-the-calming-response-parental-versus-mechanical-soothing-using-swaddling-sound-and

Renowned pediatrician Dr. Harvey Karp developed the 5S method, which includes comforting techniques like shushing to soothe infants, helping them calm down and fall asleep more easily. This approach has been widely validated by studies showing that the "shush" sound, by mimicking the familiar sounds of the womb, helps babies synchronize their physiological responses with these external stimuli, thus promoting relaxation and sleep.

To learn more about Dr. Karp's methods, you can visit his website: [Dr. Harvey Karp - The 5 S's](https://www.happiestbaby.com/pages/t