What is a myth that doesn't sound like a myth to you?

Myth that doesn't sound like a myth 

The typical Indian myth that sleeping under a tree during the day is good for health as the tree produces oxygen during the day but sleeping under a tree during the night is bad for health as the tree breathes out CO2 during the night.

Makes sense doesn't it? At least I used to think so. After thinking it through it makes no sense at all.

• Whatever Oxygen or Carbon dioxide produced would be very little and since we are not talking about a closed container, due to dissipation it would merge into the general air rather than create a concentration of Oxygen or Carbon dioxide.
• Outdoors wind blows all the time. Any toxic Carbon dioxide would be blown away.
• Co2 and O2 production and consumption happens simultaneously as far as I know.

On the other hand sleeping in the open is not at all recommended especially in tropical places like India.

• Tigers roam many semi forested areas near villages.
• Dacoits, bandits and thieves could kill you for whatever reason.
• Snakes and poisonous insects could bite you.

So I feel this myth was created by people to prevent buggers from sleeping under trees at night for their own safety. Maybe some people need this type of convincing or otherwise they would not take heed at all.

Being influenced by Claire Jordan, there is another Bible story that I believe it could be generated from old oral traditions.

The Paradise, where nature could give effortlessly everything for us, then we got cursed. Now we have to work, breaking our backs, to live.

Modern Archeology today have evidences that the hunter & gathering tribes had much better lives than the first settlements and civilizations.

Fossils are showing that tribes had better nutrition and less bones deformities (acquired from heavy work on plantations and similar jobs) than people from big civilizations.

So those people could still have stories and memories from the golden times when life was easy, you had everything you need, less work, more free time, more fun…

That was the Paradise.

Having to work most of the sunny hours, day after day to get a poor diet, afraid of bad weather and not enough production, paying taxes, that could only be a punishment.

 No, I’m not a Cryptozoic nut, I just think that Bigfoot is a simple misunderstanding.

This is a bear that’s lost it’s fur:

This is a bear walking on two feet:

Apparently, when bears injure their front paws, they’re able to get around decently well on their hind legs.

So, put the two together. You’re walking in the forest and you see this massive, eight-foot tall, hulking creature with a hairy face, but walking on two feet like a human. The creature looks like nothing you’ve ever seen, but your instinct is going to be to run, and you’re never, ever going to forget the incident (though your mind is certain to re-arrange and exaggerate what you saw).

There are a number of common causes that I could imagine both costing a bear its fur and injuring it’s front paws (fire, disease, etc). It wouldn’t take many encounters with such creatures to spread the story of a giant, furry humanoid running around in the woods. But by the time anyone recovers any evidence, or even a corpse, all they find is a sick bear.