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:
When was the Jet' (Turbo) airline service inaugurated?
1st in the World
What is the difference between arteries and veins? Complete General Knowledge Question and Answer fo...
General Knowledge
GK Question "Who Made The Discovery Of Electricity?" general knowledge book English 2021 current aff...
General Knowledge
GK Question "Why Some People Are Left-Handed?" general knowledge book English 2021 current affairs q...
General Knowledge
Who were the Amazons? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 an...
General Knowledge
Who invented shorthand? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 ...
General Knowledge
Who were the Mayans? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 and...
General Knowledge
GK Question "Why Is It, That Moths Eat Wool?" general knowledge book English 2021 current affairs qu...
General Knowledge
GK Question "How The Days Of The Week Were Named?" general knowledge book English 2021 current affai...
General Knowledge
What is the difference between toadstools and mushrooms? Complete General Knowledge Question and Ans...
General Knowledge
GK Question "Do You Know, As To, Where Did The Ice Cream Originate?" general knowledge book English ...
General Knowledge
How did the grapefruit get its name? Complete General Knowledge Question and Answer for Class 6, 7, ...
General Knowledge
Who carved the faces on Mount Rushmore? Complete General Knowledge Question and Answer for Class 6, ...
General Knowledge
Who discovered hypnosis? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11...
General Knowledge
GK Question "Why The Colour of Male Birds Are Brighter Than The Female Birds?" general knowledge boo...
General Knowledge
Can echoes travel through water? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9...
General Knowledge
Why do cats have rough tongues?Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, ...
General Knowledge
Do you know “Braille printer made of LEGO blocks”.
Do you know
Why does the moon keep changing its shape? Complete General Knowledge Question and Answer for Class ...
General Knowledge
Do you know "One minute mobile phone charger".
Do you know
