Thought I would make this thread for people to list “facts” that they used to believe were true but no longer do.
Here is a disproven “fact” that I not that long ago learned was false:
Myth: Dogs see only in black and white.
Not true at all it turns out. Apparently they see yellow and blue.
Heres another one:
people only use 10% of their brain.
I heard and believed the story that “waited for this moment” by phil collins was about him witnessing someone drowning at the hand of someone he knew but the killer didn’t know phil saw him drown him and then invited him to a front row seat to sing the song to the killer…hahahahahahaha…oh man, was I gullible.
dyou mean like, if you dig a hole so deep then you’ll end up in Australia
If you used to believe that, then yes.
If your keep rolling your eyes they’ll get stuck that way lol. Heard this as a child a lot!
The whole “You reap what you sow” thing. Unless I’m missing something, people get away with all sorts of things.
This isnt a myth but i never knew that the phrase
“Breakfast” meant to break the fast till last year🤣
Mind friggen blown
still do 
I also loved the film journey to the centre of the earth lol
No two snowflakes are alike. To be honest I’ve often questioned that one.
Salt was the harmless combination of two harmful chemicals. Ask anyone with high blood pressure and you find out otherwise.
If you swallow bubblegum it will stay inside you for seven years
If you get rabies the only way to survive is to get seven shots in the stomach
When i was a kid i thought the world was black and white in old timey days and one day i asked my dad when the world became colorful. The truth that photography got more advanced didnt occur to 6 year old me
I recently learned that many people believe babies are unaffected by trauma because they do not remember it.
Then I read that babies are profoundly affected by trauma because they process it in their lower brain because their upper brain is not yet developed. This is what they call the “lizard brain” which I think is the brain stem and the cerebellum. It’s the foundation on which our cognitive and emotional development is built, the health of which determines the development of higher brain functions. This is why traumatized infants can later present with emotional problems and learning disabilities.
Finding out that so many people believe babies are immune to trauma was so disturbing that it stuck with me.
I thought you can’t treat mental illness and crazy ppl. I always thought they lock them in a hospital away from society forever.
When I was a kid, I was told by another kid that if you eat watermelon seeds, a watermelon will grow inside your belly. I believed it for a few years, until I was old enough to realize that that is just nonsense. 
Myths about food. Too many to name.
My grandmother smoked 24/7 since she was 12y.o. She tried to make me smoke with her, she told me cigarettes make ppl tough, they will make you a tough strong man lol
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