Actually that is a lie. Yawns are contagious.
No.
yes, yawns are contagious and you can go to science.howstuffworks.com/life/contagious-yawn.htm
coz
Study shows yawning isn't contagious but the fact we have a circuitry system that makes us want to mimic.
I don't know about "drowsy" but I have heard that if someone near you yawns, you yawn too. Like yawns are contagious. Yawns don't mean that you're tired. It also means that you're not getting enough oxygen, but that has not been scientifically tested.
Yes, yawning can be contagious. The urge to yawn when you see or hear someone else yawn is believed to be a reflex triggered by a social and empathetic response rather than an actual need for oxygen.
Using the dictionary definition of 'contagious' , No they are not since yawns are not passed on by physical contact as would be the case for contagion. I suspect the questioner meant to ask whether yawns are capable of being passed on to another person. The answer to this question is yes, since by a process of suggestion the person witnessing the yawn receives a subconscious signal telling them that they too can enjoy the relaxation and release that the other person is experiencing. This will then result in them yawning in sympathy with the other person.
An example of contagious behavior is yawning. When one person yawns, it often triggers others around them to yawn as well, even if they weren't feeling tired before. This is thought to be a natural response related to empathy and social bonding.
with sex
1 yawn means you are tired. 2 yawns means you need a nap. 3 yawns means you need to go to sleep.
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.