servile adjective. âº âeager to âserve and âplease someone âelse in a way that âshows a âlack of ârespect for yourself: As a âwaiter, you âwant to be âpleasant to âpeople without âappearing servile. (Definition of servile from the Cambridge Academic Content Dictionary Â© Cambridge University Press).
That is a good question. In fact, it is not really known why horse yawn. Some suggestions for this behavior are the following: 1  Change of sleeping, napping and waking state. 2  Physical fatigue. 3  Mental stress.  Release of mental or physical stress. Horses will often yawn after a chiropractor session or massage session.
Yawning is a reflex action, which causes us to open our mouth wide and inhale a large amount of air, which is then followed by its exhalation.Though yawning is more commonly associated with boredom, fatigue, sleepiness, overwork or stress, many of us also yawn when we wake up or simply when see others yawn.ut of the various theories regarding what causes a yawn, the most important ones are given below. A yawn is contagious, in the sense that it can easily spread to the person who is observing the other person yawning.