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.This is usually a sign of a heart problem to come such as a heart attack or an aortic dissection, which is a separation of the aortal walls.hen this nerve acts upon the blood vessels, it causes the body to yawn. This is usually a sign of a heart problem to come such as a heart attack or an aortic dissection, which is a separation of the aortal walls.