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.
Excessive Yawning. Excessive yawning is more than a theory, itâs actually an indication of something more serious called a vasovagal reaction. The yawning occurs as a response to the vagus nerve, which is the longest cranial nerve. When this nerve acts upon the blood vessels, it causes the body to yawn.xcessive Yawning. Excessive yawning is more than a theory, itâs actually an indication of something more serious called a vasovagal reaction. The yawning occurs as a response to the vagus nerve, which is the longest cranial nerve. When this nerve acts upon the blood vessels, it causes the body to yawn.