9) Mysteries of the Living

Function of the appendix?

What is the function of the human appendix? Did it once have a purpose that has since been lost?

Why do people need to sleep?

Sleep is crucial to staying healthy and feeling your best, and it’s hard to understand this until you’ve subjected yourself to far less than the optimal amount of sleep.

Evolutionary Missing Link

Are we going to be able to recognise our Last Common Ancestor (LCA) when we find it?

Why are most people right handed?

Roughly 90% of humans are right-handed and this is one of the traits that separates us from most other primates who don’t really show any overall preference for left or right handedness.

Why Do We Have Fingerprints?

Fingerprints are ridged patterns that form on our fingertips. They develop while we are in our mother's womb and are formed completely by the seventh month.

Why do we laugh?

Laughter is part of the universal human vocabulary. All members of the human species understand it. Unlike English or French or Swahili, we don’t have to learn to speak it. We’re born with the capacity to laugh.

www.scienceabc.com/humans/science-laughter-reason-lol.html

Is there a purpose to a yawn?

Reading about yawning makes people yawn. You are probably yawning right now.

Why Do We Dream?

Dreams are hallucinations that occur during certain stages of sleep. They’re strongest during REM sleep, or the rapid eye movement stage, when you may be less likely to recall your dream...

Interstitium, our biggest organ?

The Interstitium Is Important, But Don’t Call It An Organ (Yet)

Why do we have different Blood Types?

Human blood types most likely came to exist to fend off infectious diseases. The incompatibility of some blood types, however, is just an accident of evolution.

https://www.livescience.com/33528-why-blood-types-exist-compatible.html

Not everyone on Earth has the same blood type. Researchers are still trying to figure out why there are so many, but these different blood types can have deadly downsides

https://www.businessinsider.com/why-humans-have-different-blood-types-2016-12/?IR=T

Altruism ...

... the belief in or practice of disinterested and selfless concern for the well-being of others.

...

Altruism is acting out of concern for another’s well-being. Often, people behave altruistically when they see others in desperate circumstances and feel empathy and a desire to help...

https://www.psychologytoday.com/us/basics/altruism

Report abuse