A healthy young adult entrained to the sun will (during most of the year) fall asleep a few hours after sunset, experience body temperature minimum at 6AM, and wake up a few hours after sunrise. Source: Internet
An organism whose circadian clock exhibits a regular rhythm corresponding to outside signals is said to be entrained ; the rhythm so established persists even if the outside signals suddenly disappear. Source: Internet
Also, much work has been done to see how long or short a circadian cycle to which different organisms can be entrained. Source: Internet
A scientific study of the benefits of entrained breathing technique in relatively fit, but untrained rowers did not show any physiological or psychological benefit to either technique. Source: Internet
However, entrained air entails a trade off with strength, as each 1% of air may decrease compressive strength 5%. Source: Internet
Grooving muscular activation patterns so that a particular direction in lung air flow is entrained to a particular part of any exertion is not helpful. Source: Internet