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Top 5 Biological Mysteries scientists are unable to explain.

The human body is full of mysteries and in today's article we shall be taking a look at some of the wildest things that even scientists can't explain.

1.) Alzheimer's

Alzheimer's is an irreversible degeneration of the brain that causes disruptions in memory and personality cognition. Roughly 500,000 new cases are diagnosed each year and scientists are still trying to find out the cause of this disease

2.) Blushing

This is a sign of embarrassment, being happy or confusion. No one knows what it actually is, where the feeling comes from or even why it shows on our faces when we do it. The leading theories suggest that blushing is a sign of submitting power and honesty to someone else.

3.) Deja Vu

Most people have experienced the sensation that a new event or place they encounter is one they have already been through already at some point in their lives. This feeling is known as Deja Vu and not even scientists can explain where it comes from.

4.) Yawns

Although it is often linked to sleep, boredom or hunger, the physiological causes for yawning are still a matter of debate. Some believe it helps regulate the brain temperature while others say it may be linked to the empathetic parts of our brains but none of these theories have been proved to be true.

5.) Crying

While many animals have tears, only human beings' tears are tied to our emotions. Crying is mostly associated with sadness, friendliness or empathy but still, no one can truly explain why it happens.

Content created and supplied by: CollinsMutambu (via Opera News )

Alzheimer Blushing Deja Vu

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