Just about all our behaviors are contagious. Scratching, deep breath, emotion, looking in a certain direction, sudden alertness. If yawning were different, that would be weird.

▲

nickthegreek 4 hours ago | parent [-]

Most of those can also be done consciously though. Yawning is different. It is more inline with flatulence, crying, or vomiting. Actions that are in many ways, outside of our direct control.

	▲	_factor 2 hours ago \| parent \| next [-]
		I can yawn on command continuously every few seconds just by thinking about how it feels.
	▲	kobalsky 3 hours ago \| parent \| prev [-]
		I can yawn on command. Rumbling my ears and edging swallowing it triggers a yawn 100% of the time