I really dont know the answer but I need something so Iam typing this so yea lol
I think its because when your upside down, your not breathing right. So its a way of trying to breathe correctly.
Viruses can multiply very quickly, and so they can go through natural selection at a much quicker rate, allowing certain vaccine resistant mutations to take over a population.
All of the above i think.
Clavicle is also called as collar bone.These are the long bones which connects the arm to the case of the body.it keeps the arm to move freely.
therefore,
Clavicle is called as the beauty bone.
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