Why do people yawn?
It is not just people who yawn. Even cats and dogs do. Sometimes we yawn when we are feeling sleepy or bored. It is believed that yawning makes us more alert. During yawning, the facial muscles and neck muscles are stretched. This helps to improve blood circulation making us feel alert. Another theory holds that people yawn when their bodies need more oxygen. Yawning is very infectious.
Related posts:
What is the riddle of the Nile? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9,...
General Knowledge
Do fish build homes? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 and...
General Knowledge
Why do pipes crack when the water in them turns to ice? Complete General Knowledge Question and Answ...
General Knowledge
When did man begin eating eggs? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9,...
General Knowledge
Do you know “Bhimbetka, the earliest known gallery of cave paintings, in India”.
Do you know
Do you know “The first digitised version of the Ramayana”.
Do you know
What did the Romans trade? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, ...
General Knowledge
Did sea reptiles lay eggs? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, ...
General Knowledge
Which dinosaur had the largest feet? Complete General Knowledge Question and Answer for Class 6, 7, ...
General Knowledge
How does the seismograph measure an earthquake? Complete General Knowledge Question and Answer for C...
General Knowledge
GK Question "How Do We Make Chewing Gum?" general knowledge book English 2021 current affairs quiz a...
General Knowledge
What are the elements? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 a...
General Knowledge
What is a bloodhound? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 an...
General Knowledge
GK Question "How And When Did The Medicine Begin?" general knowledge book English 2021 current affai...
General Knowledge
Why did Egyptians have funeral barges? Complete General Knowledge Question and Answer for Class 6, 7...
General Knowledge
Do you know “Indian classical music in space".
Do you know
When was the first round-the-world passenger service inaugurated? How many days did such trips take?
1st in the World
What is an artesian well? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 1...
General Knowledge
Do you know “Tallest temple towers”.
Do you know
What is Zoroastrianism? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 ...
General Knowledge
