voluntary
Type your answer here... involuntary
Yes, it is common for people to feel sleepy or have the urge to yawn when they see or hear someone else yawn. This is known as contagious yawning and it happens due to the activation of mirror neurons in the brain, which mimic another person's action, in this case yawning. Contagious yawning is believed to be related to empathy and social bonding.
Yawning is associated with tiredness, stress, overwork, lack of stimulation, or boredom. Yawning can also be a powerful non-verbal message with several possible meanings, depending on the circumstances. In humans, yawning has an infectious quality, i.e. seeing a person yawning, or just thinking of yawning, can trigger yawning which is a typical example of positive feedback. Infectious yawning has also been noted in chimpanzees. The primary reason behind yawning is to control brain temperature. It cools off your brain, much like a fan cools off the inside of a computer. The claim that yawning is caused by lack of oxygen has not been substantiated scientifically. Some claim that yawning is not caused by lack of oxygen, for the reason that yawning allegedly reduces oxygen intake compared to normal respiration. Another speculated reason for yawning is nervousness and is also claimed to help increase the state of alertness of a person-paratroopers have been noted to yawn in the moments before they exit the aircraft.
it isn't, yawning is due to the fact you are breathing slower and not taking in enough oxygen
Some studies say that yawning occurs when your brain is overheated. Maybe your hearing decreases because of this heat? Yawning is still a mystery.
Type your answer here... involuntary
yes
SIMILARITIES of voluntey action and involuntary action
An action by choice is a voluntary action.
Voluntary Action History Society was created in 1991.
National Center for Voluntary Action was created in 1970.
The difference between reflex and voluntary action is that a reflex occurs naturally in response to some sort of stimulus and voluntary action is something that is consciously carried out. An example of a reflex action is gagging and an example of voluntary action is flinching when someone is going to hit you.
It is voluntary because your voluntary muscells in the arm are preforming this action.
Climbing is a voluntary action because you are controlling your body when you are climbing.
walking
voluntary, a typical person can move it at will.
The cast of Voluntary Action - 2009 includes: Dylan Harrington as Steven Mcentire