“People tend to fall asleep when gently rocked or vibrated. Experimental studies have shown that rocking promotes sleep in humans and mice. However, the mechanisms underlying the phenomenon are not well understood.“
Source: Cell Reports, vol. 33, issue 9, 108462,
Several studies (example) have confirmed that widely-held concept that rocking can induce and enhance sleep in humans (and other mammals).
In order to test possible deep-rooted evolutionary links with other species, the 2020 study cited above used Drosophila (fruit flies) to test whether (gentle) rocking might promote sleep in insects.
Our data establish that as in humans and mice, gentle mechanosensory stimulation can promote sleep in Drosophila.
As with previous studies, the research wasn't able to pinpoint the exact mechanisms regarding how rocking can influence sleep.
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